From bf51c644f7d29400d884e20def9a0bee74904308 Mon Sep 17 00:00:00 2001
From: John Bowler <jbowler@acm.org>
Date: Tue, 22 Sep 2015 09:05:13 -0700
Subject: [PATCH] Updated contrib/testpngs/*.png

Corrected copyright/licensing information, corrected filtering.

Signed-off-by: John Bowler <jbowler@acm.org>
---
 contrib/testpngs/gray-1-1.8-tRNS.png       | Bin 324 -> 325 bytes
 contrib/testpngs/gray-1-1.8.png            | Bin 310 -> 311 bytes
 contrib/testpngs/gray-1-linear-tRNS.png    | Bin 324 -> 325 bytes
 contrib/testpngs/gray-1-linear.png         | Bin 310 -> 311 bytes
 contrib/testpngs/gray-1-sRGB-tRNS.png      | Bin 277 -> 278 bytes
 contrib/testpngs/gray-1-sRGB.png           | Bin 263 -> 264 bytes
 contrib/testpngs/gray-1-tRNS.png           | Bin 264 -> 265 bytes
 contrib/testpngs/gray-1.png                | Bin 250 -> 251 bytes
 contrib/testpngs/gray-16-1.8-tRNS.png      | Bin 1346 -> 744 bytes
 contrib/testpngs/gray-16-1.8.png           | Bin 1346 -> 744 bytes
 contrib/testpngs/gray-16-linear-tRNS.png   | Bin 1346 -> 744 bytes
 contrib/testpngs/gray-16-linear.png        | Bin 1346 -> 744 bytes
 contrib/testpngs/gray-16-sRGB-tRNS.png     | Bin 1299 -> 697 bytes
 contrib/testpngs/gray-16-sRGB.png          | Bin 1299 -> 697 bytes
 contrib/testpngs/gray-16-tRNS.png          | Bin 1286 -> 684 bytes
 contrib/testpngs/gray-16.png               | Bin 1286 -> 684 bytes
 contrib/testpngs/gray-2-1.8-tRNS.png       | Bin 324 -> 325 bytes
 contrib/testpngs/gray-2-1.8.png            | Bin 310 -> 311 bytes
 contrib/testpngs/gray-2-linear-tRNS.png    | Bin 324 -> 325 bytes
 contrib/testpngs/gray-2-linear.png         | Bin 310 -> 311 bytes
 contrib/testpngs/gray-2-sRGB-tRNS.png      | Bin 277 -> 278 bytes
 contrib/testpngs/gray-2-sRGB.png           | Bin 263 -> 264 bytes
 contrib/testpngs/gray-2-tRNS.png           | Bin 264 -> 265 bytes
 contrib/testpngs/gray-2.png                | Bin 250 -> 251 bytes
 contrib/testpngs/gray-4-1.8-tRNS.png       | Bin 326 -> 327 bytes
 contrib/testpngs/gray-4-1.8.png            | Bin 312 -> 313 bytes
 contrib/testpngs/gray-4-linear-tRNS.png    | Bin 326 -> 327 bytes
 contrib/testpngs/gray-4-linear.png         | Bin 312 -> 313 bytes
 contrib/testpngs/gray-4-sRGB-tRNS.png      | Bin 279 -> 280 bytes
 contrib/testpngs/gray-4-sRGB.png           | Bin 265 -> 266 bytes
 contrib/testpngs/gray-4-tRNS.png           | Bin 266 -> 267 bytes
 contrib/testpngs/gray-4.png                | Bin 252 -> 253 bytes
 contrib/testpngs/gray-8-1.8-tRNS.png       | Bin 326 -> 327 bytes
 contrib/testpngs/gray-8-1.8.png            | Bin 312 -> 313 bytes
 contrib/testpngs/gray-8-linear-tRNS.png    | Bin 326 -> 327 bytes
 contrib/testpngs/gray-8-linear.png         | Bin 312 -> 313 bytes
 contrib/testpngs/gray-8-sRGB-tRNS.png      | Bin 279 -> 280 bytes
 contrib/testpngs/gray-8-sRGB.png           | Bin 265 -> 266 bytes
 contrib/testpngs/gray-8-tRNS.png           | Bin 266 -> 267 bytes
 contrib/testpngs/gray-8.png                | Bin 252 -> 253 bytes
 contrib/testpngs/gray-alpha-16-1.8.png     | Bin 2095 -> 919 bytes
 contrib/testpngs/gray-alpha-16-linear.png  | Bin 2095 -> 919 bytes
 contrib/testpngs/gray-alpha-16-sRGB.png    | Bin 2048 -> 872 bytes
 contrib/testpngs/gray-alpha-16.png         | Bin 2035 -> 859 bytes
 contrib/testpngs/gray-alpha-8-1.8.png      | Bin 1346 -> 744 bytes
 contrib/testpngs/gray-alpha-8-linear.png   | Bin 1346 -> 744 bytes
 contrib/testpngs/gray-alpha-8-sRGB.png     | Bin 1299 -> 697 bytes
 contrib/testpngs/gray-alpha-8.png          | Bin 1286 -> 684 bytes
 contrib/testpngs/palette-1-1.8-tRNS.png    | Bin 341 -> 342 bytes
 contrib/testpngs/palette-1-1.8.png         | Bin 328 -> 329 bytes
 contrib/testpngs/palette-1-linear-tRNS.png | Bin 341 -> 342 bytes
 contrib/testpngs/palette-1-linear.png      | Bin 328 -> 329 bytes
 contrib/testpngs/palette-1-sRGB-tRNS.png   | Bin 294 -> 295 bytes
 contrib/testpngs/palette-1-sRGB.png        | Bin 281 -> 282 bytes
 contrib/testpngs/palette-1-tRNS.png        | Bin 281 -> 282 bytes
 contrib/testpngs/palette-1.png             | Bin 268 -> 269 bytes
 contrib/testpngs/palette-2-1.8-tRNS.png    | Bin 349 -> 350 bytes
 contrib/testpngs/palette-2-1.8.png         | Bin 334 -> 335 bytes
 contrib/testpngs/palette-2-linear-tRNS.png | Bin 349 -> 350 bytes
 contrib/testpngs/palette-2-linear.png      | Bin 334 -> 335 bytes
 contrib/testpngs/palette-2-sRGB-tRNS.png   | Bin 302 -> 303 bytes
 contrib/testpngs/palette-2-sRGB.png        | Bin 287 -> 288 bytes
 contrib/testpngs/palette-2-tRNS.png        | Bin 289 -> 290 bytes
 contrib/testpngs/palette-2.png             | Bin 274 -> 275 bytes
 contrib/testpngs/palette-4-1.8-tRNS.png    | Bin 399 -> 400 bytes
 contrib/testpngs/palette-4-1.8.png         | Bin 372 -> 373 bytes
 contrib/testpngs/palette-4-linear-tRNS.png | Bin 399 -> 400 bytes
 contrib/testpngs/palette-4-linear.png      | Bin 372 -> 373 bytes
 contrib/testpngs/palette-4-sRGB-tRNS.png   | Bin 352 -> 353 bytes
 contrib/testpngs/palette-4-sRGB.png        | Bin 325 -> 326 bytes
 contrib/testpngs/palette-4-tRNS.png        | Bin 339 -> 340 bytes
 contrib/testpngs/palette-4.png             | Bin 312 -> 313 bytes
 contrib/testpngs/palette-8-1.8-tRNS.png    | Bin 1359 -> 1360 bytes
 contrib/testpngs/palette-8-1.8.png         | Bin 1092 -> 1093 bytes
 contrib/testpngs/palette-8-linear-tRNS.png | Bin 1359 -> 1360 bytes
 contrib/testpngs/palette-8-linear.png      | Bin 1092 -> 1093 bytes
 contrib/testpngs/palette-8-sRGB-tRNS.png   | Bin 1312 -> 1313 bytes
 contrib/testpngs/palette-8-sRGB.png        | Bin 1045 -> 1046 bytes
 contrib/testpngs/palette-8-tRNS.png        | Bin 1299 -> 1300 bytes
 contrib/testpngs/palette-8.png             | Bin 1032 -> 1033 bytes
 contrib/testpngs/rgb-16-1.8-tRNS.png       | Bin 2958 -> 1211 bytes
 contrib/testpngs/rgb-16-1.8.png            | Bin 2958 -> 1211 bytes
 contrib/testpngs/rgb-16-linear-tRNS.png    | Bin 2958 -> 1211 bytes
 contrib/testpngs/rgb-16-linear.png         | Bin 2958 -> 1211 bytes
 contrib/testpngs/rgb-16-sRGB-tRNS.png      | Bin 2911 -> 1164 bytes
 contrib/testpngs/rgb-16-sRGB.png           | Bin 2911 -> 1164 bytes
 contrib/testpngs/rgb-16-tRNS.png           | Bin 2898 -> 1151 bytes
 contrib/testpngs/rgb-16.png                | Bin 2898 -> 1151 bytes
 contrib/testpngs/rgb-8-1.8-tRNS.png        | Bin 1725 -> 837 bytes
 contrib/testpngs/rgb-8-1.8.png             | Bin 1707 -> 819 bytes
 contrib/testpngs/rgb-8-linear-tRNS.png     | Bin 1725 -> 837 bytes
 contrib/testpngs/rgb-8-linear.png          | Bin 1707 -> 819 bytes
 contrib/testpngs/rgb-8-sRGB-tRNS.png       | Bin 1678 -> 790 bytes
 contrib/testpngs/rgb-8-sRGB.png            | Bin 1660 -> 772 bytes
 contrib/testpngs/rgb-8-tRNS.png            | Bin 1665 -> 777 bytes
 contrib/testpngs/rgb-8.png                 | Bin 1648 -> 759 bytes
 contrib/testpngs/rgb-alpha-16-1.8.png      | Bin 2028 -> 1437 bytes
 contrib/testpngs/rgb-alpha-16-linear.png   | Bin 2028 -> 1437 bytes
 contrib/testpngs/rgb-alpha-16-sRGB.png     | Bin 1981 -> 1390 bytes
 contrib/testpngs/rgb-alpha-16.png          | Bin 1968 -> 1377 bytes
 contrib/testpngs/rgb-alpha-8-1.8.png       | Bin 2095 -> 919 bytes
 contrib/testpngs/rgb-alpha-8-linear.png    | Bin 2095 -> 919 bytes
 contrib/testpngs/rgb-alpha-8-sRGB.png      | Bin 2048 -> 872 bytes
 contrib/testpngs/rgb-alpha-8.png           | Bin 2035 -> 859 bytes
 104 files changed, 0 insertions(+), 0 deletions(-)

diff --git a/contrib/testpngs/gray-1-1.8-tRNS.png b/contrib/testpngs/gray-1-1.8-tRNS.png
index 85283b147fd74e15ebfd87dc7ec4fca2f77cb5f5..0fc6cb7dba1b9907a4f4973940cd7e6718c83924 100644
GIT binary patch
delta 138
zcmV;50CoSw0>uK5rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEAQmq=Z~y=R

delta 138
zcmV;50CoSx0>lE4rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#G9|Kc8egFUf

diff --git a/contrib/testpngs/gray-1-1.8.png b/contrib/testpngs/gray-1-1.8.png
index 6f1415c43a65086adadd58fcf5e12e87bed94c16..5db4d7915c600289a83979832b122d4989cf398d 100644
GIT binary patch
delta 138
zcmV;50CoSi0=EK?n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0Apf*FH~;_u

delta 138
zcmV;50CoSj0=5E>n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2AMDsYMgRZ+

diff --git a/contrib/testpngs/gray-1-linear-tRNS.png b/contrib/testpngs/gray-1-linear-tRNS.png
index b6557eb5639b6fa86ea96158f5dcba44a08cc0bf..5beb9d1df2026d6a63ecbf733dd86ff238e41aea 100644
GIT binary patch
delta 138
zcmV;50CoSw0>uK5rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEAQmq=Z~y=R

delta 138
zcmV;50CoSx0>lE4rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#G9|Kc8egFUf

diff --git a/contrib/testpngs/gray-1-linear.png b/contrib/testpngs/gray-1-linear.png
index 5c2fac6d9c4db4a4806b580133d170c89cbf3c5d..36a89a5abb65bc26902168e4354f9b7a0a058129 100644
GIT binary patch
delta 138
zcmV;50CoSi0=EK?n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0Apf*FH~;_u

delta 138
zcmV;50CoSj0=5E>n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2AMDsYMgRZ+

diff --git a/contrib/testpngs/gray-1-sRGB-tRNS.png b/contrib/testpngs/gray-1-sRGB-tRNS.png
index cb381f6a85507ad47946926dc70c07145bcb84bc..80cec4b5eda87dbb62339094799b5ee2992cc539 100644
GIT binary patch
delta 137
zcmV;40CxYC0+s@hcYkzgR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fm_|lRrAK

delta 137
zcmV;40CxYD0+j-gcYkwfR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fn0}eN;Wa

diff --git a/contrib/testpngs/gray-1-sRGB.png b/contrib/testpngs/gray-1-sRGB.png
index 2dc5c6efca3caf991002f83e44b80327bc819f32..484fd18c4f64f1166bc8d27840187c7334471fde 100644
GIT binary patch
delta 137
zcmV;40CxX}0*C^TX@7KSR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fmb)eG58y

delta 137
zcmV;40CxX~0*3;SX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmh*XCOU?

diff --git a/contrib/testpngs/gray-1-tRNS.png b/contrib/testpngs/gray-1-tRNS.png
index d173b6ad79d6efb81a08f4a76fdfc9f62e634d0e..a988db9686e25a1abbc150bc6cc92c62e5647a50 100644
GIT binary patch
delta 137
zcmV;40CxX~0*L~UYJYTTR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fme*exW*j

delta 137
zcmV;40CxY00*C^TYJYQSR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmk+Xtq6z

diff --git a/contrib/testpngs/gray-1.png b/contrib/testpngs/gray-1.png
index 931d27e939c1f8c5e0423368d07892d62d006ab9..71e37a336385e6432e94a7d9ff63ee51450e082a 100644
GIT binary patch
delta 137
zcmV;40CxZS0s8@vTz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fl}t?_WDZ

delta 137
zcmV;40CxZT0r~-uTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fm4u*>pZp

diff --git a/contrib/testpngs/gray-16-1.8-tRNS.png b/contrib/testpngs/gray-16-1.8-tRNS.png
index a1664619ef2fd63ba98e41f86ed362db6d01f026..06cc0c138e80cf81da4acfe4e1dcfacf5a392c0e 100644
GIT binary patch
delta 214
zcmX@a^@4T6jQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
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MUHx3vIVCg!04YOO!vFvP

delta 821
zcmV-51Iqm91;PrDn16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
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diff --git a/contrib/testpngs/gray-16-1.8.png b/contrib/testpngs/gray-16-1.8.png
index a1664619ef2fd63ba98e41f86ed362db6d01f026..06cc0c138e80cf81da4acfe4e1dcfacf5a392c0e 100644
GIT binary patch
delta 214
zcmX@a^@4T6jQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
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ziw|$${lBR4qk|N8?yB>?r_$LbUu21#Y`|hX`4fu;kPe3OwZ*P89Z6#5E8C&Gg8>LU
MUHx3vIVCg!04YOO!vFvP

delta 821
zcmV-51Iqm91;PrDn16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
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zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRo|@Y?1;Wlc54JlVAZ_li>kvk^&VN!2kRQldAz6h2j_#00000NkvXXu0mjf=|iiR

diff --git a/contrib/testpngs/gray-16-linear-tRNS.png b/contrib/testpngs/gray-16-linear-tRNS.png
index 86fbcd1dc8330e66a560c4ee0cc7df5e1c454256..beb4e96e25f70241098b8427adadfbdbe2c4bdf0 100644
GIT binary patch
delta 214
zcmX@a^@4T6jQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
zj$6iGw)xh5rHAj^7M{Dc&!{h1LwxqB%O`k^jkKC>%vh_&z@Wgm+tbA{q~g}wONNX<
ziw|$${lBR4qk|N8?yB>?r_$LbUu21#Y`|hX`4fu;kPe3OwZ*P89Z6#5E8C&Gg8>LU
MUHx3vIVCg!04YOO!vFvP

delta 821
zcmV-51Iqm91;PrDn16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRo|@Y?1;Wlc54JlVAZ_li>kvk^&VN!2kRQldAz6h2j_#00000NkvXXu0mjf=|iiR

diff --git a/contrib/testpngs/gray-16-linear.png b/contrib/testpngs/gray-16-linear.png
index 86fbcd1dc8330e66a560c4ee0cc7df5e1c454256..beb4e96e25f70241098b8427adadfbdbe2c4bdf0 100644
GIT binary patch
delta 214
zcmX@a^@4T6jQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
zj$6iGw)xh5rHAj^7M{Dc&!{h1LwxqB%O`k^jkKC>%vh_&z@Wgm+tbA{q~g}wONNX<
ziw|$${lBR4qk|N8?yB>?r_$LbUu21#Y`|hX`4fu;kPe3OwZ*P89Z6#5E8C&Gg8>LU
MUHx3vIVCg!04YOO!vFvP

delta 821
zcmV-51Iqm91;PrDn16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRo|@Y?1;Wlc54JlVAZ_li>kvk^&VN!2kRQldAz6h2j_#00000NkvXXu0mjf=|iiR

diff --git a/contrib/testpngs/gray-16-sRGB-tRNS.png b/contrib/testpngs/gray-16-sRGB-tRNS.png
index 92c5fa723fc8e42214c14fe26eb4eabff4fa1e54..315db86a6ad80b29e14ab131535c2839cb919124 100644
GIT binary patch
delta 214
zcmbQtwUc#1W_?L!NJNQGW^!s?ab{jR10zFf9s>i%b=@9czGel1*7ctrG0N=Don9f>
zGTlpwr*R{<|9Z~YdVB3;u6q)RT(>)`^4z&PX4Pt~$SLT(cd5T%*5+w_?VC%Iit-L-
z$1US8+kET3(!=*{3(wu!XVjOhAwK)m<rBQdMp{ibW~^0XU{GM(?djqeQgQ3;B|}D_
z#fLZW{$Eu2(Lstkchz~{Q|WAz3z=&tFJR`M+{98jc>}W$l+P}9o#{vtGhf*b<sA$_
N;OXk;vd$@?2>`dYR$%}D

delta 823
zcmV-71IYZj1(OPpX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRj=JQIpUCI+HO1a+A;j8Iw^0Qj^dDFc`r9{0Eb(0UL$l7!&{i002ovPDHLkV1jYO
BtBe2u

diff --git a/contrib/testpngs/gray-16-sRGB.png b/contrib/testpngs/gray-16-sRGB.png
index 92c5fa723fc8e42214c14fe26eb4eabff4fa1e54..315db86a6ad80b29e14ab131535c2839cb919124 100644
GIT binary patch
delta 214
zcmbQtwUc#1W_?L!NJNQGW^!s?ab{jR10zFf9s>i%b=@9czGel1*7ctrG0N=Don9f>
zGTlpwr*R{<|9Z~YdVB3;u6q)RT(>)`^4z&PX4Pt~$SLT(cd5T%*5+w_?VC%Iit-L-
z$1US8+kET3(!=*{3(wu!XVjOhAwK)m<rBQdMp{ibW~^0XU{GM(?djqeQgQ3;B|}D_
z#fLZW{$Eu2(Lstkchz~{Q|WAz3z=&tFJR`M+{98jc>}W$l+P}9o#{vtGhf*b<sA$_
N;OXk;vd$@?2>`dYR$%}D

delta 823
zcmV-71IYZj1(OPpX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRj=JQIpUCI+HO1a+A;j8Iw^0Qj^dDFc`r9{0Eb(0UL$l7!&{i002ovPDHLkV1jYO
BtBe2u

diff --git a/contrib/testpngs/gray-16-tRNS.png b/contrib/testpngs/gray-16-tRNS.png
index 7dcff96e2222f9a9b0e5c5639054da4deec100e0..4826d61eb7fab6977de0135762596f6220847a51 100644
GIT binary patch
delta 214
zcmZqUTEjXaroJRIB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
zneL^;)3}k_e?4bxy}foa*FA|uuG^hedG1^tvud?g<P`MYyVPGWYxA_e_RS?pMR^Ca
z<CgK4ZN7D1>EZjfh39VVGwMs$5TAYO@(EsJBdw+zGuEmxFeotY_H=O!skrs_k|86|
z;=>zw|1YZi=pe<NyXw5}sdTo<h0Fz$7ck3AZeq!qyn$IB$`=v4&U7S+nXhbz@(u<d
N@O1TaS?83{1OS%XRyqIx

delta 827
zcmV-B1H}BS1%?WcTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRj=JM3c|~LX&_21(PuXWs}eWCX-PDMU&70Js80M{0Eb(0UL$l7!&{i002ovPDHLk
FV1k(0ta$(c

diff --git a/contrib/testpngs/gray-16.png b/contrib/testpngs/gray-16.png
index 7dcff96e2222f9a9b0e5c5639054da4deec100e0..4826d61eb7fab6977de0135762596f6220847a51 100644
GIT binary patch
delta 214
zcmZqUTEjXaroJRIB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
zneL^;)3}k_e?4bxy}foa*FA|uuG^hedG1^tvud?g<P`MYyVPGWYxA_e_RS?pMR^Ca
z<CgK4ZN7D1>EZjfh39VVGwMs$5TAYO@(EsJBdw+zGuEmxFeotY_H=O!skrs_k|86|
z;=>zw|1YZi=pe<NyXw5}sdTo<h0Fz$7ck3AZeq!qyn$IB$`=v4&U7S+nXhbz@(u<d
N@O1TaS?83{1OS%XRyqIx

delta 827
zcmV-B1H}BS1%?WcTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRj=JM3c|~LX&_21(PuXWs}eWCX-PDMU&70Js80M{0Eb(0UL$l7!&{i002ovPDHLk
FV1k(0ta$(c

diff --git a/contrib/testpngs/gray-2-1.8-tRNS.png b/contrib/testpngs/gray-2-1.8-tRNS.png
index de7711070138f775c44142260bfca0971c91dabf..a1c6854c96cac7f43c66695fcb529ede2d6d5d34 100644
GIT binary patch
delta 138
zcmV;50CoSw0>uK5rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEAQmq=Z~y=R

delta 138
zcmV;50CoSx0>lE4rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#G9|Kc8egFUf

diff --git a/contrib/testpngs/gray-2-1.8.png b/contrib/testpngs/gray-2-1.8.png
index 765195d2028beed14aa4e92c94ad33a2055a0604..4cc811cdf7eacddc22bbae8eca6813c5783418ac 100644
GIT binary patch
delta 138
zcmV;50CoSi0=EK?n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0Apf*FH~;_u

delta 138
zcmV;50CoSj0=5E>n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2AMDsYMgRZ+

diff --git a/contrib/testpngs/gray-2-linear-tRNS.png b/contrib/testpngs/gray-2-linear-tRNS.png
index b47fa6f81423ec571898992b983ab57a43dedfc5..3c29ec6d97ac694615d5081ad650a348a1ead652 100644
GIT binary patch
delta 138
zcmV;50CoSw0>uK5rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEAQmq=Z~y=R

delta 138
zcmV;50CoSx0>lE4rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#G9|Kc8egFUf

diff --git a/contrib/testpngs/gray-2-linear.png b/contrib/testpngs/gray-2-linear.png
index be05b67396ea69ed428e7ddd3ee553815a50d10c..6ca6fb74dd865fdc8272190027938252c613254a 100644
GIT binary patch
delta 138
zcmV;50CoSi0=EK?n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0Apf*FH~;_u

delta 138
zcmV;50CoSj0=5E>n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2AMDsYMgRZ+

diff --git a/contrib/testpngs/gray-2-sRGB-tRNS.png b/contrib/testpngs/gray-2-sRGB-tRNS.png
index e59afd34fca65072685970729f8a171de3e0fea9..b418c8fbb600a1991f4e19147c95c5f2856e1310 100644
GIT binary patch
delta 137
zcmV;40CxYC0+s@hcYkzgR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fm_|lRrAK

delta 137
zcmV;40CxYD0+j-gcYkwfR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fn0}eN;Wa

diff --git a/contrib/testpngs/gray-2-sRGB.png b/contrib/testpngs/gray-2-sRGB.png
index 5a41961b636f6f55fca398bc4e22789a1b1bafd4..a6bde60afe4a37ac48cac5461c8e7ffd015c4940 100644
GIT binary patch
delta 137
zcmV;40CxX}0*C^TX@7KSR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fmb)eG58y

delta 137
zcmV;40CxX~0*3;SX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmh*XCOU?

diff --git a/contrib/testpngs/gray-2-tRNS.png b/contrib/testpngs/gray-2-tRNS.png
index b561fa7d2ad785c44470ce54de83079638ffd4cd..8e04cb5020cc1ecf62544cb32d5b79c80db9eb55 100644
GIT binary patch
delta 137
zcmV;40CxX~0*L~UYJYTTR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fme*exW*j

delta 137
zcmV;40CxY00*C^TYJYQSR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmk+Xtq6z

diff --git a/contrib/testpngs/gray-2.png b/contrib/testpngs/gray-2.png
index 43c33a2b115a7aea673b57fa3fd0c5af96a6a9a4..9d85a2ace35065acf576c22c315e50366f4fd264 100644
GIT binary patch
delta 137
zcmV;40CxZS0s8@vTz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fl}t?_WDZ

delta 137
zcmV;40CxZT0r~-uTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fm4u*>pZp

diff --git a/contrib/testpngs/gray-4-1.8-tRNS.png b/contrib/testpngs/gray-4-1.8-tRNS.png
index 3d2421f2040c94f3d2e6ad4a89e97d48a3743cb1..402d699fbc58d06f5dd278de7237e76ed57d2095 100644
GIT binary patch
delta 138
zcmV;50CoSy0>=W7rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEA{bRVb^rhX

delta 138
zcmV;50CoSz0>%Q6rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#GAq9Coga7~l

diff --git a/contrib/testpngs/gray-4-1.8.png b/contrib/testpngs/gray-4-1.8.png
index 58ab65f743baac276ad80b82a65c4f6a7b9a128c..bc8da98761cf9ecf3b9e0f1195b58a19f672ae5a 100644
GIT binary patch
delta 138
zcmV;50CoSk0=WW^n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0A_3_-J^%m!

delta 138
zcmV;50CoSl0=NQ@n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2A@2S?OaK4?

diff --git a/contrib/testpngs/gray-4-linear-tRNS.png b/contrib/testpngs/gray-4-linear-tRNS.png
index 06ed70243c7dce1dbb048002e7f1448f5d364188..45c063d8542ccc7429dc4709fa8487244748d9fb 100644
GIT binary patch
delta 138
zcmV;50CoSy0>=W7rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEA{bRVb^rhX

delta 138
zcmV;50CoSz0>%Q6rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#GAq9Coga7~l

diff --git a/contrib/testpngs/gray-4-linear.png b/contrib/testpngs/gray-4-linear.png
index 7c2db733908df32c3a0a96958fcd02d7a88aea27..0bd068d73fe1cb710b6f1eeed6c34dae1de8d718 100644
GIT binary patch
delta 138
zcmV;50CoSk0=WW^n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0A_3_-J^%m!

delta 138
zcmV;50CoSl0=NQ@n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2A@2S?OaK4?

diff --git a/contrib/testpngs/gray-4-sRGB-tRNS.png b/contrib/testpngs/gray-4-sRGB-tRNS.png
index 6f15c1a4356de4addfe74501f867024c7c2c1f90..be8521049c4bd55335297e587ad8679808c193df 100644
GIT binary patch
delta 137
zcmV;40CxYE0+<4jcYkzgR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fm_~m0>!!

delta 137
zcmV;40CxYF0+#}icYkwfR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fn10e|9~^

diff --git a/contrib/testpngs/gray-4-sRGB.png b/contrib/testpngs/gray-4-sRGB.png
index c7dfa75126d06287df7e1426810826db7090d21b..38a79228d93ba2f043ba3edb84d78cd58ea7a6a3 100644
GIT binary patch
delta 137
zcmV;40CxY00*V5VX@7KSR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fmb+e=RzH

delta 137
zcmV;40CxY10*L~UX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmh-X+k}X

diff --git a/contrib/testpngs/gray-4-tRNS.png b/contrib/testpngs/gray-4-tRNS.png
index 838cacf9ee9fd0347cb02b18f31c066e36f63415..14c4f1fb3aadad1b986d1ff32b99ae5eb50421e5 100644
GIT binary patch
delta 137
zcmV;40CxY10*eBWYJYTTR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fme-fWtb2

delta 137
zcmV;40CxY20*V5VYJYQSR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmk;YS=xI

diff --git a/contrib/testpngs/gray-4.png b/contrib/testpngs/gray-4.png
index 530b46c26e1c86c330e5a901ea1e90105b26eb42..16bcada820e9317d7b3815e635f35201d0574d92 100644
GIT binary patch
delta 137
zcmV;40CxZU0sR4xTz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fl}v@qs%@

delta 137
zcmV;40CxZV0sH}wTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fm4w+m=38

diff --git a/contrib/testpngs/gray-8-1.8-tRNS.png b/contrib/testpngs/gray-8-1.8-tRNS.png
index 0c50804c52392977552fc64ae162d1fd588b3e87..2b3892458a430c374e0025e7ef87642065aa5600 100644
GIT binary patch
delta 138
zcmV;50CoSy0>=W7rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEA{bRVb^rhX

delta 138
zcmV;50CoSz0>%Q6rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#GAq9Coga7~l

diff --git a/contrib/testpngs/gray-8-1.8.png b/contrib/testpngs/gray-8-1.8.png
index 02cfd3e357dc1d39e386ba927095e190dbf25255..4bba74cfa63e2e81fb6b7bc7ad83282cd9b94f8f 100644
GIT binary patch
delta 138
zcmV;50CoSk0=WW^n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0A_3_-J^%m!

delta 138
zcmV;50CoSl0=NQ@n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2A@2S?OaK4?

diff --git a/contrib/testpngs/gray-8-linear-tRNS.png b/contrib/testpngs/gray-8-linear-tRNS.png
index e2a199539f1f79ffdf8b3ae188cf8052b391d9f9..a801abdaaa756477768c6fcc56a679b597235a2c 100644
GIT binary patch
delta 138
zcmV;50CoSy0>=W7rhjy4R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxvEA{bRVb^rhX

delta 138
zcmV;50CoSz0>%Q6rhjv3R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx#GAq9Coga7~l

diff --git a/contrib/testpngs/gray-8-linear.png b/contrib/testpngs/gray-8-linear.png
index 278aa37ea103f843bc37600e4158c751efec3c29..91be367ee5c1ac540bc68888aa4253292636f31d 100644
GIT binary patch
delta 138
zcmV;50CoSk0=WW^n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0A_3_-J^%m!

delta 138
zcmV;50CoSl0=NQ@n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2A@2S?OaK4?

diff --git a/contrib/testpngs/gray-8-sRGB-tRNS.png b/contrib/testpngs/gray-8-sRGB-tRNS.png
index 1584b17e6268b2cd2b47bb3250c7c57ddef8d5a6..f54f23d6bc86096cf0268208b903275a35790707 100644
GIT binary patch
delta 137
zcmV;40CxYE0+<4jcYkzgR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fm_~m0>!!

delta 137
zcmV;40CxYF0+#}icYkwfR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fn10e|9~^

diff --git a/contrib/testpngs/gray-8-sRGB.png b/contrib/testpngs/gray-8-sRGB.png
index 62f5f707cc2f99ee2b8907637e32fabeaade5e36..2ae6377ff956395a0e6b948f0236e057db3d3a9e 100644
GIT binary patch
delta 137
zcmV;40CxY00*V5VX@7KSR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fmb+e=RzH

delta 137
zcmV;40CxY10*L~UX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmh-X+k}X

diff --git a/contrib/testpngs/gray-8-tRNS.png b/contrib/testpngs/gray-8-tRNS.png
index e09e888eef8e0ce549535b07339dcb94bc73bf32..842245f1d9f192857edd85f43f2d8d6ca8874c01 100644
GIT binary patch
delta 137
zcmV;40CxY10*eBWYJYTTR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fme-fWtb2

delta 137
zcmV;40CxY20*V5VYJYQSR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fmk;YS=xI

diff --git a/contrib/testpngs/gray-8.png b/contrib/testpngs/gray-8.png
index 321fa06ab17c2125c4cec6114246767c54136b4b..23af27e141a5f6a6dbd411dc738418a087997bb2 100644
GIT binary patch
delta 137
zcmV;40CxZU0sR4xTz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fl}v@qs%@

delta 137
zcmV;40CxZV0sH}wTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fm4w+m=38

diff --git a/contrib/testpngs/gray-alpha-16-1.8.png b/contrib/testpngs/gray-alpha-16-1.8.png
index 383852c3584ce85d1aae5a1578a6df7ece150104..e0d36b7f09cae81f51467da2b57256438c80f5a5 100644
GIT binary patch
delta 299
zcmZ24Fr9tEjQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
zj$6iGw)xh5rHAj^7M{Dc&!{h1LwxqB%O`k^jkKC>%vh_&z@W#J<>}%WQgQ3;m7Tl?
z9C(-=z4k5t-*@-WQz@p)49#m*G>xTquFH>4Smw8$`Hafshismc6WBPJIU0l~KV<ct
zyn&5{S%5)(vLL%8P+Vzp0h<sIvoI?#_)T_Xx1Gcx!s5Un!#LTI%@HWhKRJm_0jdV1
g4uvnt!SLY$`#zO_3m2YPFT(%?p00i_>zopr0G~c?zW@LL

delta 1470
zcmV;v1ws0k2d@y2n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$2Y&-eL_t(|+U?ZSwit#2
zMbQ&GX>7EyZ6}Rw+qP}nwr$(CZQH)TaNj%k81o1A!wM7-5D*Z^%>I)L2oxk(h`>RE
zhYS)dM5v&_Lxv6(B2<{*Aw!1^5h_f$kfFnd4;3a{gwSEb{}m=&got6o{}m}*gou&D
z{}m}pgou%&{(luIO0<ZPqehPuC0dNgQKQF<5-moosL^A_jus<UoaixQ$BhvyPP~}0
z<HnB_CtiZsapV6TCtiYo;>Q0wVY~$YB#Qrc!o&&wNtER8go%^>lPF2Dgo%?TPn0BC
zio{8ir%aM8MXIF9Q>IRqB2}8?DO0CSkt$8Pl&RCEPk)srU53<Y(`QVRE<>iY=`&_d
zmmyP@^cgc}&5$Wewv3sxX3vx*TaL_Gv**l`Ek~}b*>mR3mLpf5>^XDi&5<ilzMQ%9
z=FgQUUxD0t^B2sMufV@~^A{|XufV^B^A{{sq`<$0ixw<Yq}acOixw|bq*#f<MT?g#
zQmjO&qJPCpmM&JJRGH!>OP4KCs!X|(rOTEtRi<2p(q+q6EK{yRrLyHKRxVeeQkC)*
zD_5;hsY<nqm8({-RHa&t%2lh^tWvE;t*X^))~;5gR-NiKYuBw&t4_U|wd>ZeRi|Eq
z+I8zUtW&Q+qq_AQHm=v8QIq-&8#isxs7bSijenaqZ`7n&i^ffxw`|g^MXRRGTefc2
zqE(ybEnBy3(W*_mmaW^iZ`Gz<ht_S|cWl$HL#MXwJ9ci@p;MRk9XogJ(5Xwej-9)9
z@6@GRkIr4Y_w3TGN3X8kd-m?uqgS8qJ$v`<(W_6tp1u3_@71T@fZl!k5A4%#z@WbU
z2Y(LkH(=0^{sRXO9WZFfuz`bz4j(jR*oeVHhmRaGY{aOc!$*!DHe%G6;Uh<n9WiRm
zxRImBjvqB<+=S6%$4?wHZo;Io<0noYH(}D0@e?OcoiJ(2w270aPM<Vo+KkClr_Y=+
zZN{vr(`U|}He=SD=`&}~oiS_9yqUA-&VQdZXWoL@bLTIdGjGA7x$_q;p0{AplKBf4
zFI})`$+Crumo8tlWZ8<vOP8-)vTVhwrOQ{YUbbS@n&m53uU)Zf&AOGV*REf+X5EI>
zYu9gFvu?wtwd*%-UbkV>mh~GqZ{4tI%eIZ1w{G9GW!sL;Tet7rvTet%t=o6*-hZ}Z
z*PiV=ckkV?YtO!&yZ7$jwP)Xf-Fx>R+_Ue%p}qSL9^QB0(2@NI4<9{n=*Y2yhmRgV
zbmZ8H!$*&wJaX*BsiVhFo<4Ts)S2TaPoF(;>dd*5r_Y{0b>`fK(`V0LJag{CrL*TR
zUOso>(v|ZUFJHZI>B_Z>m#<#GbbsaAjmuZB-@J0|#;vQ@Z{EIk<JO()H*ep)aqG^#
zo44=Yzjf!{gWGrSKfH7A!K1tPA3nbK;L(%&4<A2$@aW02hmW5=fAr+pi^or&zkKrS
z#jB^!U%r0!;?<kyFJHfX@#@XHm#^QxfA!|whu3f4e|+=q!>70JKYo7q;ZD<+_a8rh
z{qX6_w~wE{e*g64+mFv*zyJL5?Z>aL-+%u8_T$%|?>~PB{P^`J(9hoifq(r86y$e6
z;Glm31ql`qIB4*|0fB=C2mYG`lW_tflfVHhlh6SL0|9UXlTiaNlMn(T0|MX#lc51h
zlh6SN0|dYclR*PNlMn(D0|<a4lh6Shlh6Shlh6SjlVk!flfVHYlVSoflfVHL82%6c
Y0~l%Sy;03HQ~&?~07*qoM6N<$g1ONPZvX%Q

diff --git a/contrib/testpngs/gray-alpha-16-linear.png b/contrib/testpngs/gray-alpha-16-linear.png
index 68f6329381e245c7fc8e553a81cbf664c5397a1f..26aa32cee157628a4d03895aadbd4d112d52dfd7 100644
GIT binary patch
delta 299
zcmZ24Fr9tEjQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
zj$6iGw)xh5rHAj^7M{Dc&!{h1LwxqB%O`k^jkKC>%vh_&z@W#J<>}%WQgQ3;m7Tl?
z9C(-=z4k5t-*@-WQz@p)49#m*G>xTquFH>4Smw8$`Hafshismc6WBPJIU0l~KV<ct
zyn&5{S%5)(vLL%8P+Vzp0h<sIvoI?#_)T_Xx1Gcx!s5Un!#LTI%@HWhKRJm_0jdV1
g4uvnt!SLY$`#zO_3m2YPFT(%?p00i_>zopr0G~c?zW@LL

delta 1470
zcmV;v1ws0k2d@y2n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$2Y&-eL_t(|+U?ZSwit#2
zMbQ&GX>7EyZ6}Rw+qP}nwr$(CZQH)TaNj%k81o1A!wM7-5D*Z^%>I)L2oxk(h`>RE
zhYS)dM5v&_Lxv6(B2<{*Aw!1^5h_f$kfFnd4;3a{gwSEb{}m=&got6o{}m}*gou&D
z{}m}pgou%&{(luIO0<ZPqehPuC0dNgQKQF<5-moosL^A_jus<UoaixQ$BhvyPP~}0
z<HnB_CtiZsapV6TCtiYo;>Q0wVY~$YB#Qrc!o&&wNtER8go%^>lPF2Dgo%?TPn0BC
zio{8ir%aM8MXIF9Q>IRqB2}8?DO0CSkt$8Pl&RCEPk)srU53<Y(`QVRE<>iY=`&_d
zmmyP@^cgc}&5$Wewv3sxX3vx*TaL_Gv**l`Ek~}b*>mR3mLpf5>^XDi&5<ilzMQ%9
z=FgQUUxD0t^B2sMufV@~^A{|XufV^B^A{{sq`<$0ixw<Yq}acOixw|bq*#f<MT?g#
zQmjO&qJPCpmM&JJRGH!>OP4KCs!X|(rOTEtRi<2p(q+q6EK{yRrLyHKRxVeeQkC)*
zD_5;hsY<nqm8({-RHa&t%2lh^tWvE;t*X^))~;5gR-NiKYuBw&t4_U|wd>ZeRi|Eq
z+I8zUtW&Q+qq_AQHm=v8QIq-&8#isxs7bSijenaqZ`7n&i^ffxw`|g^MXRRGTefc2
zqE(ybEnBy3(W*_mmaW^iZ`Gz<ht_S|cWl$HL#MXwJ9ci@p;MRk9XogJ(5Xwej-9)9
z@6@GRkIr4Y_w3TGN3X8kd-m?uqgS8qJ$v`<(W_6tp1u3_@71T@fZl!k5A4%#z@WbU
z2Y(LkH(=0^{sRXO9WZFfuz`bz4j(jR*oeVHhmRaGY{aOc!$*!DHe%G6;Uh<n9WiRm
zxRImBjvqB<+=S6%$4?wHZo;Io<0noYH(}D0@e?OcoiJ(2w270aPM<Vo+KkClr_Y=+
zZN{vr(`U|}He=SD=`&}~oiS_9yqUA-&VQdZXWoL@bLTIdGjGA7x$_q;p0{AplKBf4
zFI})`$+Crumo8tlWZ8<vOP8-)vTVhwrOQ{YUbbS@n&m53uU)Zf&AOGV*REf+X5EI>
zYu9gFvu?wtwd*%-UbkV>mh~GqZ{4tI%eIZ1w{G9GW!sL;Tet7rvTet%t=o6*-hZ}Z
z*PiV=ckkV?YtO!&yZ7$jwP)Xf-Fx>R+_Ue%p}qSL9^QB0(2@NI4<9{n=*Y2yhmRgV
zbmZ8H!$*&wJaX*BsiVhFo<4Ts)S2TaPoF(;>dd*5r_Y{0b>`fK(`V0LJag{CrL*TR
zUOso>(v|ZUFJHZI>B_Z>m#<#GbbsaAjmuZB-@J0|#;vQ@Z{EIk<JO()H*ep)aqG^#
zo44=Yzjf!{gWGrSKfH7A!K1tPA3nbK;L(%&4<A2$@aW02hmW5=fAr+pi^or&zkKrS
z#jB^!U%r0!;?<kyFJHfX@#@XHm#^QxfA!|whu3f4e|+=q!>70JKYo7q;ZD<+_a8rh
z{qX6_w~wE{e*g64+mFv*zyJL5?Z>aL-+%u8_T$%|?>~PB{P^`J(9hoifq(r86y$e6
z;Glm31ql`qIB4*|0fB=C2mYG`lW_tflfVHhlh6SL0|9UXlTiaNlMn(T0|MX#lc51h
zlh6SN0|dYclR*PNlMn(D0|<a4lh6Shlh6Shlh6SjlVk!flfVHYlVSoflfVHL82%6c
Y0~l%Sy;03HQ~&?~07*qoM6N<$g1ONPZvX%Q

diff --git a/contrib/testpngs/gray-alpha-16-sRGB.png b/contrib/testpngs/gray-alpha-16-sRGB.png
index 9bedb6e875ccbe81a132547f3616fe1f30e2af98..f1e811ba342aa8d90406fb1f1014764b2b7b6a71 100644
GIT binary patch
delta 296
zcmZn=c)>Oyv%VxVB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
zneL^;)3}k_e?4bxy}foa*FA|uuG^hedG1^tvud?g<P`MYyVPGWYxA_e_RS?pMR^Ca
z<CgK4ZN7D1>EZjfh39VVGwMs$5TAYO@(EsJBdw+zGuEmxFz7L5dAc};RNQ)dWhd_e
z2OefeuYJq^_uW18REp^`L-Se{O=Ibu>+<6hmiet`KBF?(fK7Sw2R81>57?xEn3I{K
zL3nZ?doZK=WJNY3sEi1+0)yY=gY4>)53p*nI55aCPCm$H1yn9J`4O8WR4Yh33ld*Q
c{KEtGeJcMJE<CYbh5-mXUHx3vIVCg!0L#mC_W%F@

delta 1468
zcmV;t1w;Di27nNdX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$2Y&-eL_t(|+U?ZSwit#2
zMbQ&GX>7EyZ6}Rw+qP}nwr$(CZQH)TaNj%k81o1A!wM7-5D*Z^%>I)L2oxk(h`>RE
zhYS)dM5v&_Lxv6(B2<{*Aw!1^5h_f$kfFnd4;3a{gwSEb{}m=&got6o{}m}*gou&D
z{}m}pgou%&{(luIO0<ZPqehPuC0dNgQKQF<5-moosL^A_jus<UoaixQ$BhvyPP~}0
z<HnB_CtiZsapV6TCtiYo;>Q0wVY~$YB#Qrc!o&&wNtER8go%^>lPF2Dgo%?TPn0BC
zio{8ir%aM8MXIF9Q>IRqB2}8?DO0CSkt$8Pl&RCEPk)srU53<Y(`QVRE<>iY=`&_d
zmmyP@^cgc}&5$Wewv3sxX3vx*TaL_Gv**l`Ek~}b*>mR3mLpf5>^XDi&5<ilzMQ%9
z=FgQUUxD0t^B2sMufV@~^A{|XufV^B^A{{sq`<$0ixw<Yq}acOixw|bq*#f<MT?g#
zQmjO&qJPCpmM&JJRGH!>OP4KCs!X|(rOTEtRi<2p(q+q6EK{yRrLyHKRxVeeQkC)*
zD_5;hsY<nqm8({-RHa&t%2lh^tWvE;t*X^))~;5gR-NiKYuBw&t4_U|wd>ZeRi|Eq
z+I8zUtW&Q+qq_AQHm=v8QIq-&8#isxs7bSijenaqZ`7n&i^ffxw`|g^MXRRGTefc2
zqE(ybEnBy3(W*_mmaW^iZ`Gz<ht_S|cWl$HL#MXwJ9ci@p;MRk9XogJ(5Xwej-9)9
z@6@GRkIr4Y_w3TGN3X8kd-m?uqgS8qJ$v`<(W_6tp1u3_@71T@fZl!k5A4%#z@WbU
z2Y(LkH(=0^{sRXO9WZFfuz`bz4j(jR*oeVHhmRaGY{aOc!$*!DHe%G6;Uh<n9WiRm
zxRImBjvqB<+=S6%$4?wHZo;Io<0noYH(}D0@e?OcoiJ(2w270aPM<Vo+KkClr_Y=+
zZN{vr(`U|}He=SD=`&}~oiS_9yqUA-&VQdZXWoL@bLTIdGjGA7x$_q;p0{AplKBf4
zFI})`$+Crumo8tlWZ8<vOP8-)vTVhwrOQ{YUbbS@n&m53uU)Zf&AOGV*REf+X5EI>
zYu9gFvu?wtwd*%-UbkV>mh~GqZ{4tI%eIZ1w{G9GW!sL;Tet7rvTet%t=o6*-hZ}Z
z*PiV=ckkV?YtO!&yZ7$jwP)Xf-Fx>R+_Ue%p}qSL9^QB0(2@NI4<9{n=*Y2yhmRgV
zbmZ8H!$*&wJaX*BsiVhFo<4Ts)S2TaPoF(;>dd*5r_Y{0b>`fK(`V0LJag{CrL*TR
zUOso>(v|ZUFJHZI>B_Z>m#<#GbbsaAjmuZB-@J0|#;vQ@Z{EIk<JO()H*ep)aqG^#
zo44=Yzjf!{gWGrSKfH7A!K1tPA3nbK;L(%&4<A2$@aW02hmW5=fAr+pi^or&zkKrS
z#jB^!U%r0!;?<kyFJHfX@#@XHm#^QxfA!|whu3f4e|+=q!>70JKYo7q;ZD<+_a8rh
z{qX6_w~wE{e*g64+mFv*zyJL5?Z>aL-+%u8_T$%|?>~PB{P^`J(9hoifq(r86y$e6
z;Glm31ql`qIB4*|0fB=C2mYG`lYs#{lTZQ_1^@v70dNA7;Q}g?@B$l>0t^EJ-~^K)
z0z;EP0uBQNzzLJl0y>lM0v7`afFqNk0UMK00u+-#0wR-g0ZNll0tu6H0Y(`95B~!g
WY3#jG%`{X10000<MNUMnLSTaM90?u(

diff --git a/contrib/testpngs/gray-alpha-16.png b/contrib/testpngs/gray-alpha-16.png
index 38f4de8b33794695d9dc01eb3d8ec67e18f8ba34..689879737fc6df3cb65e3b210067b9ddbac53a38 100644
GIT binary patch
delta 270
zcmV+p0rCFx58DQiTz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
z!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN04@S*Nkl<Zc-rmMxedTT
z3<E(*zNi0=-NNM>0@DD4tt2Tk8@aA;Utp$AuLH~^lMx0rlMn_S0|<Z<lko;q0Vk8O
z20fFn1{4Dz08W!(2Q-tw1sw!H02~36AO<Fr5C$rf0tQ5r5C#vE0tQ4G2mtWl2fif!
Up`pmH8~^|S07*qoM6N<$g5yMHmH+?%

delta 1470
zcmV;v1ws1T2J;V)Tz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$2Y&-eL_t(|+U?ZSwit#2
zMbQ&GX>7EyZ6}Rw+qP}nwr$(CZQH)TaNj%k81o1A!wM7-5D*Z^%>I)L2oxk(h`>RE
zhYS)dM5v&_Lxv6(B2<{*Aw!1^5h_f$kfFnd4;3a{gwSEb{}m=&got6o{}m}*gou&D
z{}m}pgou%&{(luIO0<ZPqehPuC0dNgQKQF<5-moosL^A_jus<UoaixQ$BhvyPP~}0
z<HnB_CtiZsapV6TCtiYo;>Q0wVY~$YB#Qrc!o&&wNtER8go%^>lPF2Dgo%?TPn0BC
zio{8ir%aM8MXIF9Q>IRqB2}8?DO0CSkt$8Pl&RCEPk)srU53<Y(`QVRE<>iY=`&_d
zmmyP@^cgc}&5$Wewv3sxX3vx*TaL_Gv**l`Ek~}b*>mR3mLpf5>^XDi&5<ilzMQ%9
z=FgQUUxD0t^B2sMufV@~^A{|XufV^B^A{{sq`<$0ixw<Yq}acOixw|bq*#f<MT?g#
zQmjO&qJPCpmM&JJRGH!>OP4KCs!X|(rOTEtRi<2p(q+q6EK{yRrLyHKRxVeeQkC)*
zD_5;hsY<nqm8({-RHa&t%2lh^tWvE;t*X^))~;5gR-NiKYuBw&t4_U|wd>ZeRi|Eq
z+I8zUtW&Q+qq_AQHm=v8QIq-&8#isxs7bSijenaqZ`7n&i^ffxw`|g^MXRRGTefc2
zqE(ybEnBy3(W*_mmaW^iZ`Gz<ht_S|cWl$HL#MXwJ9ci@p;MRk9XogJ(5Xwej-9)9
z@6@GRkIr4Y_w3TGN3X8kd-m?uqgS8qJ$v`<(W_6tp1u3_@71T@fZl!k5A4%#z@WbU
z2Y(LkH(=0^{sRXO9WZFfuz`bz4j(jR*oeVHhmRaGY{aOc!$*!DHe%G6;Uh<n9WiRm
zxRImBjvqB<+=S6%$4?wHZo;Io<0noYH(}D0@e?OcoiJ(2w270aPM<Vo+KkClr_Y=+
zZN{vr(`U|}He=SD=`&}~oiS_9yqUA-&VQdZXWoL@bLTIdGjGA7x$_q;p0{AplKBf4
zFI})`$+Crumo8tlWZ8<vOP8-)vTVhwrOQ{YUbbS@n&m53uU)Zf&AOGV*REf+X5EI>
zYu9gFvu?wtwd*%-UbkV>mh~GqZ{4tI%eIZ1w{G9GW!sL;Tet7rvTet%t=o6*-hZ}Z
z*PiV=ckkV?YtO!&yZ7$jwP)Xf-Fx>R+_Ue%p}qSL9^QB0(2@NI4<9{n=*Y2yhmRgV
zbmZ8H!$*&wJaX*BsiVhFo<4Ts)S2TaPoF(;>dd*5r_Y{0b>`fK(`V0LJag{CrL*TR
zUOso>(v|ZUFJHZI>B_Z>m#<#GbbsaAjmuZB-@J0|#;vQ@Z{EIk<JO()H*ep)aqG^#
zo44=Yzjf!{gWGrSKfH7A!K1tPA3nbK;L(%&4<A2$@aW02hmW5=fAr+pi^or&zkKrS
z#jB^!U%r0!;?<kyFJHfX@#@XHm#^QxfA!|whu3f4e|+=q!>70JKYo7q;ZD<+_a8rh
z{qX6_w~wE{e*g64+mFv*zyJL5?Z>aL-+%u8_T$%|?>~PB{P^`J(9hoifq(r86y$e6
z;Glm31ql`qIB4*|0fB=C2mYG`lMw<&lb-<$0|9UXlMw+*lRyCn0|MX#lR*L&lb-<)
zlW+km0|dYclW_t%lOO>X0|<a4lQ9A&lb-<)lW+kWlac`)lW+kxlac`)lW+kk82%6c
Y0~l%Sy;03HQ~&?~07*qoM6N<$f~9E*00000

diff --git a/contrib/testpngs/gray-alpha-8-1.8.png b/contrib/testpngs/gray-alpha-8-1.8.png
index 559a7b57048fc811226d2b9b3dcb3c7fa019615d..68883a52d5c6828f5389a43634f81e7ad5f158ef 100644
GIT binary patch
delta 214
zcmX@a^@4T6jQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
zj$6iGw)xh5rHAj^7M{Dc&!{h1LwxqB%O`k^jkKC>%vh_&z@Wgm+tbA{q~g}wONNX<
ziw|$${lBR4qk|N8?yB>?r_$LbUu21#Y`|hX`4fu;kPe3OwZ*P89Z6#5E8C&Gg8>LU
MUHx3vIVCg!04YOO!vFvP

delta 821
zcmV-51Iqm91;PrDn16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRo|@Y?1;Wlc54JlVAZ_li>kvk^&VN!2kRQldAz6h2j_#00000NkvXXu0mjf=|iiR

diff --git a/contrib/testpngs/gray-alpha-8-linear.png b/contrib/testpngs/gray-alpha-8-linear.png
index f56f260d7c194f413cc9b2698ad8e8daa04b9d70..cdc07031d7faddef7b738b60f3035a067bf1a3c4 100644
GIT binary patch
delta 214
zcmX@a^@4T6jQWzykcbkW%;eO(;>^5s21bU|JO&1i>$*L@e9a01t?NHMVwBmPJH0}%
zWxAIVPvb^z|Mi@)_4eAyT=ygrxo&q><+*cp%&OH|kyFrn?^1uktj*K<+BcUZ73Cew
zj$6iGw)xh5rHAj^7M{Dc&!{h1LwxqB%O`k^jkKC>%vh_&z@Wgm+tbA{q~g}wONNX<
ziw|$${lBR4qk|N8?yB>?r_$LbUu21#Y`|hX`4fu;kPe3OwZ*P89Z6#5E8C&Gg8>LU
MUHx3vIVCg!04YOO!vFvP

delta 821
zcmV-51Iqm91;PrDn16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRo|@Y?1;Wlc54JlVAZ_li>kvk^&VN!2kRQldAz6h2j_#00000NkvXXu0mjf=|iiR

diff --git a/contrib/testpngs/gray-alpha-8-sRGB.png b/contrib/testpngs/gray-alpha-8-sRGB.png
index 72ea34fcd1c2c569109054aff77a83fa198a25ee..7c37c88836fcb80c0470388e24ff7eae95d7c223 100644
GIT binary patch
delta 214
zcmbQtwUc#1W_?L!NJNQGW^!s?ab{jR10zFf9s>i%b=@9czGel1*7ctrG0N=Don9f>
zGTlpwr*R{<|9Z~YdVB3;u6q)RT(>)`^4z&PX4Pt~$SLT(cd5T%*5+w_?VC%Iit-L-
z$1US8+kET3(!=*{3(wu!XVjOhAwK)m<rBQdMp{ibW~^0XU{GM(?djqeQgQ3;B|}D_
z#fLZW{$Eu2(Lstkchz~{Q|WAz3z=&tFJR`M+{98jc>}W$l+P}9o#{vtGhf*b<sA$_
N;OXk;vd$@?2>`dYR$%}D

delta 823
zcmV-71IYZj1(OPpX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRj=JQIpUCI+HO1a+A;j8Iw^0Qj^dDFc`r9{0Eb(0UL$l7!&{i002ovPDHLkV1jYO
BtBe2u

diff --git a/contrib/testpngs/gray-alpha-8.png b/contrib/testpngs/gray-alpha-8.png
index 9f0a053f345efeb6727e7578691118bd300d582d..eb0a92499810b1da4ca73787f7ca610339f40ddc 100644
GIT binary patch
delta 214
zcmZqUTEjXaroJRIB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
zneL^;)3}k_e?4bxy}foa*FA|uuG^hedG1^tvud?g<P`MYyVPGWYxA_e_RS?pMR^Ca
z<CgK4ZN7D1>EZjfh39VVGwMs$5TAYO@(EsJBdw+zGuEmxFeotY_H=O!skrs_k|86|
z;=>zw|1YZi=pe<NyXw5}sdTo<h0Fz$7ck3AZeq!qyn$IB$`=v4&U7S+nXhbz@(u<d
N@O1TaS?83{1OS%XRyqIx

delta 827
zcmV-B1H}BS1%?WcTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1b-GuL_t(|+U?R)f*1w>
z0MXspwr#YrZQCqj+qP}nww(rzZQFMG-z((JyTSwp1nO5VARtI!&>+Er1`ie@c*qc;
zLWT|%CUn>^;lhRw7a@Ga2$3R2jua(w)F{!SMvoRFddwKHV#baYCwAO8@#4mhmmq$^
z1c?$RPLw2Z(tjk$k|s}<B6-RbsZyp+l_quCH0jc&PnRKm#tgq@{Qb8~zh};rC3Ds+
z*|KKOmLq%49JzAl&Xp&3-aPs8=Fe9kf58HU3KlL@q;Sz9#fla$R-$;x5~WI(E>)&<
z*)rwImM>SKe8mctDpsykrE=9O)v8vnR-<~&8ntTHu76dhcHKJl>ejE<pnk&!e>D8_
zkH7x>`>#fSH*VCVanmNvnl^9NqIt^}ty;Ej)uwgZHtpKBZ`YxH#}1u3cJ9=rbJs52
zx_0l@qkGRDy?XZU)u(sgKK=Uk?>C_TzyX5>4jwdQ@X#T{h7KP#V))1rqehM%HD>hK
zG2_OLAAdJt{KN^9CQhC-W%AT1)22?JHe>qC8M9{2o;7Fo+&S~+&Y!nn{=x-|7A{`2
zWbx7^%a$%*wqp6p6{}XRUbSZR+BNIeu3xud{l*QOHg4XuW%Jf8+qQ1swqyIw9lLh!
z-nD1<-aY&F?%#J{|G@)?4jw-A&*3Bg96fUE=zsBJ{~kZ_@5vLVPM$t>=JeS!=gyu#
zcj5fS3zsflzI5gC)hpMoUcYwZ`pp}+Zr;9i=l0z@_wL@m_u&4+2ag^;e)Qz=(<jfK
zK7aP&`O6otUcP?y=Jne*@7}(D_u>7=51&4M{`BSZ*Dv3`e*gC4`_CT%KLdjV1oA60
zfRj=JM3c|~LX&_21(PuXWs}eWCX-PDMU&70Js80M{0Eb(0UL$l7!&{i002ovPDHLk
FV1k(0ta$(c

diff --git a/contrib/testpngs/palette-1-1.8-tRNS.png b/contrib/testpngs/palette-1-1.8-tRNS.png
index 6467254a03e567adf8cdecda09d5fc42cff3dbc7..7bf60410d52879bca6b5a3965f040f06e0465630 100644
GIT binary patch
delta 138
zcmV;50CoS>0@ebMw|{hLR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FyNVATen=v;Y7A

delta 138
zcmV;50CoS?0@VVLw|{eKR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FyTXA0CZ8!T<mO

diff --git a/contrib/testpngs/palette-1-1.8.png b/contrib/testpngs/palette-1-1.8.png
index 053cefb5176738a80518434a8341b89b01ce9f08..73965b724e48d70cfff04a965f847929ea97a08e 100644
GIT binary patch
delta 138
zcmV;50CoS!0?7i9s(*B8R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fx*IARL!EfB*mh

delta 138
zcmV;50CoS#0>}c8s(*87R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx>K9|^lXjsO4v

diff --git a/contrib/testpngs/palette-1-linear-tRNS.png b/contrib/testpngs/palette-1-linear-tRNS.png
index 67ae7bbf66e085da6c19f523559ea3426f53c54b..9b0133dc9f55261e271d8a4fc5f1dde99b272bc8 100644
GIT binary patch
delta 138
zcmV;50CoS>0@ebMw|{hLR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FyNVATen=v;Y7A

delta 138
zcmV;50CoS?0@VVLw|{eKR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FyTXA0CZ8!T<mO

diff --git a/contrib/testpngs/palette-1-linear.png b/contrib/testpngs/palette-1-linear.png
index 057fb17d6254b3509c4d8db78b1dd469bc978478..bf232fd33cf07bbb08474c875067fb4497539830 100644
GIT binary patch
delta 138
zcmV;50CoS!0?7i9s(*B8R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fx*IARL!EfB*mh

delta 138
zcmV;50CoS#0>}c8s(*87R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fx>K9|^lXjsO4v

diff --git a/contrib/testpngs/palette-1-sRGB-tRNS.png b/contrib/testpngs/palette-1-sRGB-tRNS.png
index f5198432b26e258310f612db68c850750e7ec783..1c6f262b336f2e797050c858469769bc7417361d 100644
GIT binary patch
delta 138
zcmV;50CoSS0;d9yh<|ixR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fwp*Am$V~_y7O^

delta 138
zcmV;50CoST0;U3xh<|fwR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fwv-AJaHJ1^@s6

diff --git a/contrib/testpngs/palette-1-sRGB.png b/contrib/testpngs/palette-1-sRGB.png
index faea26ed38af483861108a8b9672b5bc3543e83c..fbadc097fff199cc4de801210542c2ed3f930c19 100644
GIT binary patch
delta 137
zcmV;40CxYG0-6Gldw+CkR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fn71nU^}j

delta 137
zcmV;40CxYH0+|Akdw+9jR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FnD2gRDKz

diff --git a/contrib/testpngs/palette-1-tRNS.png b/contrib/testpngs/palette-1-tRNS.png
index 784a8e349442c8dc3e34516196fb702cf79a2967..8f1642b7b01c30ced4d2aef6cf0823d80e79e8ef 100644
GIT binary patch
delta 137
zcmV;40CxYG0-6Gldw+CkR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fn71nU^}j

delta 137
zcmV;40CxYH0+|Akdw+9jR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FnD2gRDKz

diff --git a/contrib/testpngs/palette-1.png b/contrib/testpngs/palette-1.png
index 0d6da4c8fe0af6e63b16a49bbf6cb8cf25c71ffb..a27d1362a2b59c6f76ed0188be16f8eff02e3ca6 100644
GIT binary patch
delta 117
zcmV-*0E+*N0*wNYZUJ<WZx&`Pj7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Xj$<eno66J34Kp$-g4md?CXwnQAJsIo

delta 116
zcmV-)0E_>P0*nHXZUJ+VZx&@G%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
W>A${{i&f<YDu*cLWTz#?k?SJOMmN9!

diff --git a/contrib/testpngs/palette-2-1.8-tRNS.png b/contrib/testpngs/palette-2-1.8-tRNS.png
index 06e88c7c3e525a771c646d8a6b00566ab0c8fca3..9d2ab16564ab7c7bbdc84d1b8907946bc4912751 100644
GIT binary patch
delta 118
zcmV-+0Ez$I0^S0UzX5cSz!qjLj7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX+h>BI2txO8@`>

delta 117
zcmV-*0E++K0^I_TzX5ZRz!qgC%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lRN<;k@PrN

diff --git a/contrib/testpngs/palette-2-1.8.png b/contrib/testpngs/palette-2-1.8.png
index fed192c3365d51bd594027cad1d7e2d4b1d184bd..cdcf28329b96889057f6c9c10da21423ee4f9203 100644
GIT binary patch
delta 118
zcmV-+0Ez$30?z`FumN<Du@+`6j7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX*}yBFDxx00000

delta 117
zcmV-*0E++50?q=EumN+Cu@+?|%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lPv)vcS|@8

diff --git a/contrib/testpngs/palette-2-linear-tRNS.png b/contrib/testpngs/palette-2-linear-tRNS.png
index 770798d269a8ed95433559f0b37a2c540d793943..d346d40071c738076bd4864327c3be3bb087da7b 100644
GIT binary patch
delta 118
zcmV-+0Ez$I0^S0UzX5cSz!qjLj7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX+h>BI2txO8@`>

delta 117
zcmV-*0E++K0^I_TzX5ZRz!qgC%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lRN<;k@PrN

diff --git a/contrib/testpngs/palette-2-linear.png b/contrib/testpngs/palette-2-linear.png
index e471b327a631ed568987b065d180f5ccf6ddb352..5c2f6d335dfb5ce156a6541631014175b0e2506f 100644
GIT binary patch
delta 118
zcmV-+0Ez$30?z`FumN<Du@+`6j7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX*}yBFDxx00000

delta 117
zcmV-*0E++50?q=EumN+Cu@+?|%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lPv)vcS|@8

diff --git a/contrib/testpngs/palette-2-sRGB-tRNS.png b/contrib/testpngs/palette-2-sRGB-tRNS.png
index 1ba7729eeefba9d8e23e77776ef276f6bbd6ad02..e5a491a7139b9db671d71c463f8acacf8c5175dc 100644
GIT binary patch
delta 118
zcmV-+0Ez#u0<Qv)kO6d&krrkxj7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX);SB93M>U;qFB

delta 117
zcmV-*0E+*w0<Hp(kO6a%krrho%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lMMkPK5I8^

diff --git a/contrib/testpngs/palette-2-sRGB.png b/contrib/testpngs/palette-2-sRGB.png
index 8c905cd20381bdfc555a94bbb380d41600447cd9..a3bf9a2f3b0e5c39cec1140880877246e0a78fc5 100644
GIT binary patch
delta 137
zcmV;40CxYM0-yqrfq!&qR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FnP7qZ>Ne

delta 138
zcmV;50CoSM0-pkqfq!#pR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fwa$AIJhc>Hq)$

diff --git a/contrib/testpngs/palette-2-tRNS.png b/contrib/testpngs/palette-2-tRNS.png
index 034783fb108ae3fbab8013cb169a8cfc4badcf3d..c34a6986d008247f312c147f0f368941cdc4fdc7 100644
GIT binary patch
delta 138
zcmV;50CoSN0-^$tgMV~sR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fwa$Al?!=<NyEw

delta 138
zcmV;50CoSO0-*wsgMV{rR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fwg&AImm8@&Et;

diff --git a/contrib/testpngs/palette-2.png b/contrib/testpngs/palette-2.png
index fe6572eb5033f82f684e8e52ed2f0970571af174..eaf4536e09bed285c717cf5babbee81b156b7d78 100644
GIT binary patch
delta 137
zcmV;40CxY90+RxebboYdR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
r!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0Fm+_j(s|%

delta 137
zcmV;40CxYA0+IrdbboVcR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
r!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0Fm?`c#=J{

diff --git a/contrib/testpngs/palette-4-1.8-tRNS.png b/contrib/testpngs/palette-4-1.8-tRNS.png
index a4427594db8531fca77ac8ff8a2e4a549ab21b12..20cb465cece78b066cfdb2a5c972b870bdabf3f6 100644
GIT binary patch
delta 118
zcmV-+0Ez#P1CRrd?*Vj?@D^q*j7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX;IcB*u9)LjV8(

delta 117
zcmV-*0E+*R1CIlc?*Vg>@D^ny%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lWYMbb^JI`

diff --git a/contrib/testpngs/palette-4-1.8.png b/contrib/testpngs/palette-4-1.8.png
index 3227be22030ca24c9c2b0c3b2937613c79cdaf93..c2318ff82ed838af1bbb7bae3422588947958c9b 100644
GIT binary patch
delta 138
zcmV;50CoTL0`&rr)PHnoR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FzPyB4PnME&u=k

delta 138
zcmV;50CoTM0`vlq)PHknR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FzV!Ax|YfJOBUy

diff --git a/contrib/testpngs/palette-4-linear-tRNS.png b/contrib/testpngs/palette-4-linear-tRNS.png
index 931ad53eb41bc1d675efa28d1278b108ce3dd958..4d96a47241327d17d0c749411ec888d23a267554 100644
GIT binary patch
delta 118
zcmV-+0Ez#P1CRrd?*Vj?@D^q*j7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX;IcB*u9)LjV8(

delta 117
zcmV-*0E+*R1CIlc?*Vg>@D^ny%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lWYMbb^JI`

diff --git a/contrib/testpngs/palette-4-linear.png b/contrib/testpngs/palette-4-linear.png
index 3901dba11151c1a1d088f410999b9cd4bab51236..dfc5a868ee2413ffd6e34fa8d2e389db674af3a7 100644
GIT binary patch
delta 138
zcmV;50CoTL0`&rr)PHnoR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FzPyB4PnME&u=k

delta 138
zcmV;50CoTM0`vlq)PHknR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FzV!Ax|YfJOBUy

diff --git a/contrib/testpngs/palette-4-sRGB-tRNS.png b/contrib/testpngs/palette-4-sRGB-tRNS.png
index 84bf60b354c6fca529d8c95d0ad35ff2985499e3..92d23e7ddab4ee1ce549e649de08b5a03fff0976 100644
GIT binary patch
delta 118
zcmV-+0Ez$L0^tIXzyWlT!4_sMj7<)MAP|MG^5Ov;yKR?v5rmgYA`F4C3s0{JU4K6-
zV+!6FVG7%cdTvJwh?;#WsBCbJ-qMe7nzNRUhqH8Ia&EzEUZxLrv)bPx;qQi_&f2~*
Yj$<eno66J34Kp$-g4md?CX+k?B<4&tRsaA1

delta 117
zcmV-*0E++N0^kCWzyWiS!4_pD%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
X>A${{i&f<YDu*cLWTz#?lRW_>m5n%K

diff --git a/contrib/testpngs/palette-4-sRGB.png b/contrib/testpngs/palette-4-sRGB.png
index f24a4d8963eb012004a174e77b668ce1ec982832..26ea9e5ab1490f215d2039b6ba673694ffbcaac2 100644
GIT binary patch
delta 138
zcmV;50CoSx0>%Q6rGIp3R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxsDA{M(kasU7T

delta 138
zcmV;50CoSy0>uK5rGIm2R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxyFAp_q%fB*mh

diff --git a/contrib/testpngs/palette-4-tRNS.png b/contrib/testpngs/palette-4-tRNS.png
index 29d6ea205e8c64acdb316fe5239a6bf0fa00dff8..429f6b95394f3cefa274d8235a861b8f6b8ece3c 100644
GIT binary patch
delta 138
zcmV;50CoS<0@MPKvww7HR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FyBRA}uF6ssI20

delta 138
zcmV;50CoS=0@DJJvww4GR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FyHTAsS0PxBvhE

diff --git a/contrib/testpngs/palette-4.png b/contrib/testpngs/palette-4.png
index edcd25005bc689e82f2d71a903b6ea5c0a473384..82f3489940e4916a1a78a74bc85ccc370b9d33fa 100644
GIT binary patch
delta 138
zcmV;50CoSk0=WW^n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
s!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN0FxF0A_3_-J^%m!

delta 138
zcmV;50CoSl0=NQ@n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
s!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$0FxL2A@2S?OaK4?

diff --git a/contrib/testpngs/palette-8-1.8-tRNS.png b/contrib/testpngs/palette-8-1.8-tRNS.png
index ccef008fd332d9bf11a088e33c1c37e2b5a30590..c10bb56973957489e019a3bd11a4f50318d59c9f 100644
GIT binary patch
delta 120
zcmV-;0Ehq23eXC$uLJ>flduF9W-W|O4uc>Ng|G7B0UWz+mv|9`mr5cGfw2ouuL)g$
zKPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD!E0Wo4|cQK-y-4fhM~^d
azA}zuC>NW`)5r}oGAe@Dn5`z0D+MI!k2OC4

delta 119
zcmV--0Eqw43eO6#uLJ>elduF9WhKl(4ul{OMA55MJb<lRT{0JOprRxLO`ykxr&q)J
zzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z!aPpHio>k5MZ~`{p7foL
ZT6gKczLSep<pwH;DCK0QCB>601tgf+I7|Ql

diff --git a/contrib/testpngs/palette-8-1.8.png b/contrib/testpngs/palette-8-1.8.png
index cbfac4a413a8a05c222b11e229838af251b28bf2..cc09ee60f1e7c375ded9e848697ac5e746d1afbd 100644
GIT binary patch
delta 139
zcmV;60CfMv2*n7nqyv9+X;fHrOlf0fZgXjFX8-{JWo`ff2-hu)O%8(~5QVSu;sG4H
zZI^fvgqKPp41uu=Pp=7Ge?Kc@3f>rD3fqZ#Zbu4;ntdv$Y;cX<(vNVOvzCsBvvgu|
tZoz9_rVn<r+TSAK?}nky+P*T5V<;D!%G1aVGcqcI*qE&*005IB1R^lRI-mdm

delta 139
zcmV;60CfMw2*e1mqyv9*X;fHrOlf0fZgXjFX8-{JWo`ff2-hXdK@Nl<5Jb_dR6KyK
zTU|02aiF3k15KdEg{N1;`oH`SL-d<5z!Y{6<^TOfkDzIb8HE+D@&Ry~lIDh|GB;vy
tZo)iH!-~VKv_-_fGM@CEj#_u=zrK@;RpkaMhbZM_rzOPz005ID1R)*hJ+1%%

diff --git a/contrib/testpngs/palette-8-linear-tRNS.png b/contrib/testpngs/palette-8-linear-tRNS.png
index 50f819e69a56f031e2c682f23880fe68431896e1..27f5a3336cffd32e8d290509aa4c6ababd82c32b 100644
GIT binary patch
delta 120
zcmV-;0Ehq23eXC$uLJ>flduF9W-W|O4uc>Ng|G7B0UWz+mv|9`mr5cGfw2ouuL)g$
zKPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD!E0Wo4|cQK-y-4fhM~^d
azA}zuC>NW`)5r}oGAe@Dn5`z0D+MI!k2OC4

delta 119
zcmV--0Eqw43eO6#uLJ>elduF9WhKl(4ul{OMA55MJb<lRT{0JOprRxLO`ykxr&q)J
zzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z!aPpHio>k5MZ~`{p7foL
ZT6gKczLSep<pwH;DCK0QCB>601tgf+I7|Ql

diff --git a/contrib/testpngs/palette-8-linear.png b/contrib/testpngs/palette-8-linear.png
index 4a2292bc9335c8e67a36152b4e53f53715914e5d..40d413cd660350acbc6346e5894d196db7ccc59e 100644
GIT binary patch
delta 139
zcmV;60CfMv2*n7nqyv9+X;fHrOlf0fZgXjFX8-{JWo`ff2-hu)O%8(~5QVSu;sG4H
zZI^fvgqKPp41uu=Pp=7Ge?Kc@3f>rD3fqZ#Zbu4;ntdv$Y;cX<(vNVOvzCsBvvgu|
tZoz9_rVn<r+TSAK?}nky+P*T5V<;D!%G1aVGcqcI*qE&*005IB1R^lRI-mdm

delta 139
zcmV;60CfMw2*e1mqyv9*X;fHrOlf0fZgXjFX8-{JWo`ff2-hXdK@Nl<5Jb_dR6KyK
zTU|02aiF3k15KdEg{N1;`oH`SL-d<5z!Y{6<^TOfkDzIb8HE+D@&Ry~lIDh|GB;vy
tZo)iH!-~VKv_-_fGM@CEj#_u=zrK@;RpkaMhbZM_rzOPz005ID1R)*hJ+1%%

diff --git a/contrib/testpngs/palette-8-sRGB-tRNS.png b/contrib/testpngs/palette-8-sRGB-tRNS.png
index a834c154c2939d64ca783c0ed2d13440656449ce..b8863ec2b8ffe01421c1fd561ddf880de73af07e 100644
GIT binary patch
delta 120
zcmV-;0Ehpe3ZV+HfCK?_lYs;lW-W|O4uc>Ng|G7B0UWz+mv|9`mr5cGfw2ouuL)g$
zKPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD!E0Wo4|cQK-y-4fhM~^d
azA}zuC>NW`)5r}oGAe@Dn5`z0`~)PH|20zp

delta 119
zcmV--0Eqvg3ZM$GfCK?^lYs;lWhKl(4ul{OMA55MJb<lRT{0JOprRxLO`ykxr&q)J
zzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z!aPpHio>k5MZ~`{p7foL
ZT6gKczLSep<pwH;DCK0QCB>8d1SCfVIA8z(

diff --git a/contrib/testpngs/palette-8-sRGB.png b/contrib/testpngs/palette-8-sRGB.png
index 67c9b09b942819ae02086256283010252a1d295a..90f8912043164c8a6cc451a6c74183cea0e6498c 100644
GIT binary patch
delta 139
zcmV;60CfMA2$l%2bpwBNX;fHrOlf0fZgXjFX8-{JWo`ff2-hu)O%8(~5QVSu;sG4H
zZI^fvgqKPp41uu=Pp=7Ge?Kc@3f>rD3fqZ#Zbu4;ntdv$Y;cX<(vNVOvzCsBvvgu|
tZoz9_rVn<r+TSAK?}nky+P*T5V<;D!%G1aVGcqcI*qE&*005Ko10v_(I^zHU

delta 139
zcmV;60CfMB2$cx1bpwBMX;fHrOlf0fZgXjFX8-{JWo`ff2-hXdK@Nl<5Jb_dR6KyK
zTU|02aiF3k15KdEg{N1;`oH`SL-d<5z!Y{6<^TOfkDzIb8HE+D@&Ry~lIDh|GB;vy
tZo)iH!-~VKv_-_fGM@CEj#_u=zrK@;RpkaMhbZM_rzOPz005Kq10mG}J@Ehl

diff --git a/contrib/testpngs/palette-8-tRNS.png b/contrib/testpngs/palette-8-tRNS.png
index f7d717ecc790fbc884d5bebaee5ebff54a52eee5..9660e67765d96cc9f0f521d480ecff9529a1a1e0 100644
GIT binary patch
delta 139
zcmV;60CfM83X}@4a|C~MX;fHrOlf0fZgXjFX8-{JWo`ff2-hu)O%8(~5QVSu;sG4H
zZI^fvgqKPp41uu=Pp=7Ge?Kc@3f>rD3fqZ#Zbu4;ntdv$Y;cX<(vNVOvzCsBvvgu|
tZoz9_rVn<r+TSAK?}nky+P*T5V<;D!%G1aVGcqcI*qE&*005Km1S02AI^h5S

delta 139
zcmV;60CfM93X=-3a|C~LX;fHrOlf0fZgXjFX8-{JWo`ff2-hXdK@Nl<5Jb_dR6KyK
zTU|02aiF3k15KdEg{N1;`oH`SL-d<5z!Y{6<^TOfkDzIb8HE+D@&Ry~lIDh|GB;vy
tZo)iH!-~VKv_-_fGM@CEj#_u=zrK@;RpkaMhbZM_rzOPz005Ko1R>OQJ?{Vj

diff --git a/contrib/testpngs/palette-8.png b/contrib/testpngs/palette-8.png
index edbdff8d58faf2fe81bc36dfb33c985382ebe1b5..2502d305b57df2ce24deb63bae3c39a1d9629fc7 100644
GIT binary patch
delta 139
zcmV;60CfL|2#E-=Xaj$AX;fHrOlf0fZgXjFX8-{JWo`ff2-hu)O%8(~5QVSu;sG4H
zZI^fvgqKPp41uu=Pp=7Ge?Kc@3f>rD3fqZ#Zbu4;ntdv$Y;cX<(vNVOvzCsBvvgu|
tZoz9_rVn<r+TSAK?}nky+P*T5V<;D!%G1aVGcqcI*qE&*005Kb10vGrI<Ei#

delta 139
zcmV;60CfL}2#5%<Xaj$9X;fHrOlf0fZgXjFX8-{JWo`ff2-hXdK@Nl<5Jb_dR6KyK
zTU|02aiF3k15KdEg{N1;`oH`SL-d<5z!Y{6<^TOfkDzIb8HE+D@&Ry~lIDh|GB;vy
tZo)iH!-~VKv_-_fGM@CEj#_u=zrK@;RpkaMhbZM_rzOPz005Kd10lc*J-q+`

diff --git a/contrib/testpngs/rgb-16-1.8-tRNS.png b/contrib/testpngs/rgb-16-1.8-tRNS.png
index b36e8094d17b6ac8e30aba200d3efe3aebc2e6d8..03251b12ef08a06018bc3a411f6f02265ba3e14e 100644
GIT binary patch
delta 324
zcmeAZ-_1E;Mtw<UNJNQGW^!s?ab{jR10zFf9s>i%b=@9czGel1*7ctrG0N=Don9f>
zGTlpwr*R{<|9Z~YdVB3;u6q)RT(>)`^4z&PX4Pt~$SLT(cd5T%*5+w_?VC%Iit-L-
z$1US8+kET3(!=*{3(wu!XVjOhAwK)m<rBQdMp{ibW~^0XV6b5B^K@|xskrs_>UPEh
z4m`|;UVQI2{NH!);MxOB%o}!kO<Hp1OwNs6+mi3<dlt=_d++>fMNhwA29L>toL-Y1
zI9Zq(3s@#!<kXy8z^TN{dVqDZBBvElTx4<)hZp-KCWlE(4>%?t0E!g=#W3}#PFCWy
z1gU3P!eG%fnUTwzNrVBWo+XGu#&NPChn4uBm+ZkRAJ?ASduJ{K5O})!xvX<aXaWGn
Cr+cXY

delta 2085
zcmYk-c|6m990zcQ4wCvMM~V)TR6;f8Si;Xug&cDfNprL0_N|1NBjz4cuI0>J!`R$%
zC-=Eu<-W}^HnSi7{`tKhpU3<2$Mg02`%O3=#s4u0K){VmU+Kba?OYIW7kd^~7CRRf
zmSaO=ohm2aUp%GOn{TA}rVwT+!|(nnLzGSLQ)@8Rq>)D2<5As2OV{zfJ~ho`s7HT-
zBL#!c7ExH;QetO9urgp9H<t!Q{l@Udf-?0ck_=`uEy~<$o<u|;ji--X54|@194pq$
z!omsIXsM|fd5<m+$TkWbiwo(Ms&F2AeKmRb;KLlQgSX8`=c$-LAQ5!D4~T>P&v<mp
zQ<+O35XW)8%SK6cDnX$qF5J^BKJ~fbJ=ZzK=X1qBgMyEpy=w9PpG&Ht+#=FyUvB@r
zti~w_aoYJ1qZ)ji|I*{Q@6Q@FfQa*Vbt{j>WT<foDceka>1|a1z$<1Rv3B~3Mx?Op
zgRE=4HcjCI@(!CxxGU;md{>^NetVSJ8gT)vT_%A0)r35!^kS)UJ+t}4S#hg(bJDi0
zk?FVpE|6RQOEg?i!Da7#m~C@d;>Aa?!|uPubyM%?*RY4hiXw%e&wgdK{T9;%;zZ5D
zcaEPC*TcxDWQevs&eBejgHz&i&xmOyTsBT=(n4W%)9z`N@aF!=(n(RYTPT}HWoyP?
zwG5e(FvRMmORMMInU{I4oeXiNMI;+$Yb9PXOz4OA*>|Si)vG>{T=HB8t!z6}Fw$rD
zElvy;wJ9iT--VG?&ABn+G1Z;~$UAPQR>|76C0sGVbefgUcBX-KD$Z9?raDrT>{n`b
zOQ*lZi<6-vh?#CQ>3)=j4~1cP`w+PH(2@p3fRnF14Gg>mxMtg^2K5irDKk=Qu0Jz&
z_a#ifXyW!b_HSC0?LaxW&PqJVs3Qd<`J~K>AI8{-X)|DzFV|y%>_1|Z+@Ow3ykS|P
ziTf+NJx<cR=J|ZdG&260agIgsFEO3Oo7OnBT$$<XM%T@%op!_Hb>byVK0l8CVb@_&
zU{S7H#TlPxBnczhOy>=B7=JO!Hjkv7l{6`|Dt(ZBeZZkV&$P;6E2Ui0IQL2BleBi@
z{GkF%ymtAya$uo9-@Nw4a`jgJz!zhzRnWp+$Du-U@!y4zt#fzs%m^-wkVwaY+@Vj8
zP@|rUV5jji{n{guDR=T=q-Vc#x)$%g?9Vbo(zu1d&XXl7nOD2a%N&L);Ts8sLU-YV
z8OG=qJv82FqC%^buW+=?akR#6v0@or{&FD4GIZu948S{+aq9W^mLabkMyj3ZQE9Mp
z_|Rv=#6jmVuch&FJ;KSf>Q|0qMBCY-i80T){%lzE_5}s6<;hZ2?5zpk&4uAAM=GXP
z!E=5v(<Hsyl0aRW!0X_JYiXN{qqX*{L<V7NZU9Suv!dijU4|BGd{t%~Ik7N8aAm#?
z^4kLD!B4+`oD87zoZquf4`e&SEjWs2*3~n)7Z2fc;~|iXPagurf9eo~q#X`HBTD!X
zGFwg@!W`}obXNWWg}~ttk8E4?1e85Chu6<&M4Xd#X~>GnY>i5n^XX4=KXX-2Q0etv
zQ=1{s8iBqIZ!g3B7T3o>0><BK8Rm2eK;0?*^RnW)DKgG21z{+xe!9Hhk2tvOi>_ov
zPg>^)0;`LbcI>Xn?X&O3C;+1oW{8=aNy>=r@m((a&J<bK`i$h#*>3Af@4-|bF20+|
zN?!X7%{sH4u;Q0(B~=^zx2&rDC*P^-Bmjj;B)9b+(~|r*%uAe_^Ma9yx2&stdt>b+
zpA?$ayxMIaa7?@b!#Q+SXLpzsSrGz9!i^mVolS`zTccY-CI#lDE{!?y`9nqIN}qug
zPoaCxX0@*wEnTpog0W(FM@9J}*k!UhU?M~hR<UeKa^DzSRscJVmN>T-MWXR80J+Mq
zFTq*i_3}uKC%t>Z5AQUFbL=4&j(M$25`eKNOTX<4!$bsil5x~)X|!~;?sFP}x&rm~
z9>N41J$YfI){9x+s6ky)aGU#vtEKY@EBpGB->Pavr40jXYrVh4dCo&TmYQ;dLZgMD
zKD6&Kw&MC}^8TAUZGHC9=M@0=h0dzXRs)Q(-~Mozp?$ZdTp(q0WP{%z6@pl4$VOp%
zFeLBY{$vFIElc@;?Y-s>lb%$9+kAU@>8z9$(U&nEtYcC%AqT8e1{T3m7S$fhErrO$
zuT~@<`j2==u**c1{}!!l%<HQK!F{p2Hh;)<lIX`Ajf8ovC{+dm8`~3f9@p_|#A<ye
z8oxRT?CcDt`SA!VRRvJ@8(R%l$Nkpk+DZvj5#>PI-ei!50j9Q+xwhUnD<z`nOId2p
z4~<S&26kz^D0?ZZTA#hm-HsvGbVa}Qg)RcN$C?;O-ycDmxK0Lm?^CwMs3O)iz8foz
z*u<}7B6DXK7(jc8C<pj3wi&HG*5n%c+I$BdzX}c9r!gi%4XlX_Z|3^O&?*$_Popfi
zevM8i1u}Q(eTlBnK*sLg7QKfIko@WEiw1QEA%Mxfc@ToKz9ljD7~qE=MM(SX>?dg(
zRPue5cMRH@Q*tlY$N<~H)%s;{|DR9ws{H%hyrQNb9<sg-I>I9eSz{{4PBFn8Z%{Z^
z2<j;-FFP-b>PJ)zNEf7gAN3Ffi3RbZ-mway-hen`LD$$NSVAtMo`ED{L1L&9R{8%o
zv=8F!s7E0Ag9<z6n@gIg(`*9&^=_bSK-Uf`Y#eo`Q1{s&f^E!9CL8H!`><OEp^4>S
NwAA(0iXJ?D_b+w;R5t(s

diff --git a/contrib/testpngs/rgb-16-1.8.png b/contrib/testpngs/rgb-16-1.8.png
index b36e8094d17b6ac8e30aba200d3efe3aebc2e6d8..03251b12ef08a06018bc3a411f6f02265ba3e14e 100644
GIT binary patch
delta 324
zcmeAZ-_1E;Mtw<UNJNQGW^!s?ab{jR10zFf9s>i%b=@9czGel1*7ctrG0N=Don9f>
zGTlpwr*R{<|9Z~YdVB3;u6q)RT(>)`^4z&PX4Pt~$SLT(cd5T%*5+w_?VC%Iit-L-
z$1US8+kET3(!=*{3(wu!XVjOhAwK)m<rBQdMp{ibW~^0XV6b5B^K@|xskrs_>UPEh
z4m`|;UVQI2{NH!);MxOB%o}!kO<Hp1OwNs6+mi3<dlt=_d++>fMNhwA29L>toL-Y1
zI9Zq(3s@#!<kXy8z^TN{dVqDZBBvElTx4<)hZp-KCWlE(4>%?t0E!g=#W3}#PFCWy
z1gU3P!eG%fnUTwzNrVBWo+XGu#&NPChn4uBm+ZkRAJ?ASduJ{K5O})!xvX<aXaWGn
Cr+cXY

delta 2085
zcmYk-c|6m990zcQ4wCvMM~V)TR6;f8Si;Xug&cDfNprL0_N|1NBjz4cuI0>J!`R$%
zC-=Eu<-W}^HnSi7{`tKhpU3<2$Mg02`%O3=#s4u0K){VmU+Kba?OYIW7kd^~7CRRf
zmSaO=ohm2aUp%GOn{TA}rVwT+!|(nnLzGSLQ)@8Rq>)D2<5As2OV{zfJ~ho`s7HT-
zBL#!c7ExH;QetO9urgp9H<t!Q{l@Udf-?0ck_=`uEy~<$o<u|;ji--X54|@194pq$
z!omsIXsM|fd5<m+$TkWbiwo(Ms&F2AeKmRb;KLlQgSX8`=c$-LAQ5!D4~T>P&v<mp
zQ<+O35XW)8%SK6cDnX$qF5J^BKJ~fbJ=ZzK=X1qBgMyEpy=w9PpG&Ht+#=FyUvB@r
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diff --git a/contrib/testpngs/rgb-16-linear-tRNS.png b/contrib/testpngs/rgb-16-linear-tRNS.png
index 4956a9b9821ec154fa46440c09d58b1c423c4aeb..3dfa6a6ad044993b59cec8ff49f078d1b9cd1d91 100644
GIT binary patch
delta 324
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Cr+cXY

delta 2085
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NwAA(0iXJ?D_b+w;R5t(s

diff --git a/contrib/testpngs/rgb-16-linear.png b/contrib/testpngs/rgb-16-linear.png
index 4956a9b9821ec154fa46440c09d58b1c423c4aeb..3dfa6a6ad044993b59cec8ff49f078d1b9cd1d91 100644
GIT binary patch
delta 324
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Cr+cXY

delta 2085
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diff --git a/contrib/testpngs/rgb-16-sRGB-tRNS.png b/contrib/testpngs/rgb-16-sRGB-tRNS.png
index fd3a8e221d43cbfd0b2b73d78e975a476731f952..2cf2209e01d6eb8253a77f91f1de55fa8a4900fd 100644
GIT binary patch
delta 318
zcmcaF*26g=v%VxVB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
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F0ss;6etrM|

delta 2086
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KX%;{D=k0&(SX2oB

diff --git a/contrib/testpngs/rgb-16-sRGB.png b/contrib/testpngs/rgb-16-sRGB.png
index fd3a8e221d43cbfd0b2b73d78e975a476731f952..2cf2209e01d6eb8253a77f91f1de55fa8a4900fd 100644
GIT binary patch
delta 318
zcmcaF*26g=v%VxVB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
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F0ss;6etrM|

delta 2086
zcmZA2X*kqt7zXgMwMldmNs%H+B~)Xdgkz^dma&{j8jNj{-M<oIEM@G&DBEPsJ{V@~
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KX%;{D=k0&(SX2oB

diff --git a/contrib/testpngs/rgb-16-tRNS.png b/contrib/testpngs/rgb-16-tRNS.png
index 450ff9134d281ff7fca2f26bcd655f690fc4cf0d..28643528d6bc2fbfd8c9da72c9fb60eec0d23e48 100644
GIT binary patch
delta 295
zcmV+?0oeZ17XJv4Tz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
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tP?IwWK9i3L4FpmE96^(T2|5@2=?7CJ@vY9i+?@ab002ovPDHLkV1o0Tc!&T1

delta 2091
zcmV+`2-Nrg2+|giTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
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V%GhwCyTkwh002ovPDHLkV1i2jRVDxc

diff --git a/contrib/testpngs/rgb-16.png b/contrib/testpngs/rgb-16.png
index 450ff9134d281ff7fca2f26bcd655f690fc4cf0d..28643528d6bc2fbfd8c9da72c9fb60eec0d23e48 100644
GIT binary patch
delta 295
zcmV+?0oeZ17XJv4Tz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
z!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN05=1UNkl<Zc-rmNw*kOF
z3<EJr4)3u4zTUyDzybrXxk{3x%*<@qy0&B8FG+Hmo!-yuAxTbC0Fz(}Py%oSld%d-
z0R@wh2tkwZ2o00M2~Psx2$L`gL6eUO4U=ICPXcfRlhFuJlavTPlkf-)1f&2sf|GCw
tP?IwWK9i3L4FpmE96^(T2|5@2=?7CJ@vY9i+?@ab002ovPDHLkV1o0Tc!&T1

delta 2091
zcmV+`2-Nrg2+|giTz_+ER9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$3V&irL_t(|+U?ad!x#vZ
zhS4v!ZQFJxnb@{%+n(6AZQHhO+x8aw54PQNi*x(8c>)Cl1Ox;G1ai(f_y6ny0tE>c
zB2<{bL4$`39X3d?5TU|^3mQCR=&<2~g$NZUT!i2uLx&9?F+`{^;UYu|89HqEh>=5u
z2^S$!l+a<rM}LeQHB7h&k)lKk8$M#>sL{hkh!iDSjPMa7M~xmcLZm3sV#JCVIcoHn
zu_Hx^79&=i$Wf!mj2$;hv>37C#ETj|X6(4}qs537CtiZ+F=NM#pD;$OIPnrBiWxg@
z{Dg^P#fg_7QIgnk<0nj<G)}w(iIOCX8$V&<q{-tYNPm<hS&H}x6DLicGC`sw$x@_B
zm^f+jl&KRXNtPm2n#4(yr%atTNwO5F(xgk8JZ0*%>64{Ml_p(=<SA39O`kDEsx;{`
zWJ;MjZTgIvQ>96lAybyrY13!SoHb3l44JZIOPfAp=B(M%Wyq8zTaNS@GiS}7Gef2<
z*>dE{n14BI_MEvhWyzK!SDwsSv**m6H%qo0x$@-8nmuRky!o@`$dxDGKiPBU&YQnL
zj$C>2{ZlY!?!5U6{F^IJzJCf9%AGfVfqx6<$@fpeLPhfCFYs^SqWS(QSg1&`{006k
zT(tN<1q&4^R-(Yag^Lz1S+G!%VkJubTexWPl7FQO6)9GtRGGp>i<c~2wn(uOrOK2m
zTD)ZGvgM1FC{?Chh2kYkmn~nhM5!|6DpV?2x@`H1l}nW=SD{js(q+q6tX#EBxeAr4
zR4ZG)V&$sU%T=gUrCN>h6)RV*Ub8}_D%EP#s#v*d^_sOSRjF2^R-MXKtJkbuw@S4d
zwSVf=t6IHg?Yi}=)u>gcUW4j2YuBycutu#q^%^v)S-WoihK+00sn?)UliGFbH*DOr
zPQ3<=nl!6hzhUF1&FeL2)TCL9`VAX5ZQim$qbAK-v})M6Y4et?8#QUxqE(y5O`ErD
z-L^@y7OmQ}YudbJ>$dHiwP@9*U5Dl^TYtB0-?2rjHtjleYT3GN`;MJkwQ1L(Q<v6l
z+js2TwN1MYow{^u+rDGxuHD;p=+vcKkM<oqckSM@L#Hm?di3hpxoh{Hy*qX3)}vRS
z&Rx6r?A^CZw;sLv^y}KaXYaoKyY=YRr{93?J$v`<Kd?uyKK%v^>e;(*|AB*h^?&I%
zV9=1>eftj_{9m7b0|pHl+PD9}!T$~GH(=0^p~L$R9Q@y~5d#Jd89IFAz`_3w8!>9o
zkfFmzjvoBquo0ui3>i9n<mj>g4I43P%($V$M~)sle%OdnW5!JwK63Qf@e@ak8Z&Of
zq>-b?j-NPr)R=J-CQTVVcKpQ2Q-8;dn=on0w6WtSPM$h_+=NL}rp*{Xaq`sZGbc=%
zGHu4JiIb;JpE-NdlxZ_&&6zxP`pnsLr%anMYtFo>(`U|}JAc}YS##zsm_Bp%-1!S<
z%$hTA!J?V7=gwcac-EYG3l=SzJ$L@X#Y^YRTd-)!vbpmYE?&BP-hxF-mVd37zi{!=
z<trB~TC!}#s)dV}E?>EN(UN5=R;^jQbot8FYnLorv1-k_rOQ{YUb}wTidAdYZCJi?
z_1g6tSFBpIZo{UPtJkjIxOvr@bsIKqS-p1s#?4#TtlO|@%eJ-aH*Vg#ecgslTej_3
zzj5={?K?MY+OloOu8o_wZhzmod()O}J9h2aymkA|-Fvre+p%lUzOCDL?%un9+m2m(
z_8r*1bNAl;2Y2k+v+uy6oxAt$KX`c8o_z-n9ofBi|G~pY_v|}x=*Y3X`wt#IdVJr3
zLr0FC*njZw(c>o%96ECB#HoXaj~+jH`p}VMCr+I?eDwIq(`SzyJAZNN%(<h-Po6$|
z{@96AXU<(Xe)9C$^A}H?I&<#ArIV-6p1*kc)R}V^E?qf&_WZ@mSI?ZgaOujmv*#~f
zzIy%Kg-chi-8g^o^404%FI>8E?Z&N(m#<#GdHd3pYd3D)xqS8d&D(dcT)T1W&b_PG
zZ{EIp|JsdPckVs7et+}!-TM!3+`4n`!K0hE@7{m-_|~0!4<0?aefR#u$4~Fvd+_MV
zv%B{nK7RWA-h)R^p1rvL@bS~<FCRR5^6bT{hmW5=fBE{+lV>kpy?Olf`ODXDpFDf<
z>dm{S&tJZN`~KOBS8v{Zc>ePB+xH(|yn6HQ!>5<8-@gC&`G3`$cOO1|dHweN$IoBi
zy!-I!%eS}hKYsrD{oRL8U%vf#|MBzJ?>|3$`tt3^uaBR<e*gLV)0b~Qe*O9U_507?
zf4_YD@#{~(*Y7`n{|)r*$FDyDfxrL!{WnmMAHV(t1P=Q1_uoK4g8ljv5IAV?-+u!I
z2^Qi{K;WRkLl^!H6eL)PPyvC11`ioJ@c%xN<o`DXfRh0OJ(EBJ4hIwfk`w?#kdxp8
zOae?mlQ97>lYjvplhOhklYjv)2Pps~DFB8blR*PYlaK)flL7-glRyFv1{4626aYh$
z{{c{wGXXA>fB_x^3V<O<lMw<vlTZN?lS2bYlaK)f0|meklOX~vlTZN-8Oi^n{{z1V
V%GhwCyTkwh002ovPDHLkV1i2jRVDxc

diff --git a/contrib/testpngs/rgb-8-1.8-tRNS.png b/contrib/testpngs/rgb-8-1.8-tRNS.png
index 7b0c8b9ad7949b0f8bee7a4e3a39b983b0172c3e..afff9df22663f6a555f7c11dbfcbe68c3ed02654 100644
GIT binary patch
delta 255
zcmV<b0095J4aEkKs(*B8R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
z!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN04f3oNkl<Zc-rmL0Sy2k
z3<JS#fPc#<n1Wq%3YvT+DYLEXIuF+B^o6wqlaU2lk_83>1mFdeAqFjzFa{ozFa{Kp
z(FGclpan((0l1UV1Xz<m1_%QPzzdTB22GPN1_u{l^Z{St0$2N89J&Ai002ovPDHLk
FV1kb3VhjKP

delta 1158
zcmV;11bO?#2E7fCs(*87R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1%H1@L_t(|+U?T=(inyU
zh0#B@ZQHid*tTukW@FoFW81cE+typbTS3pAvw}PG1quiV2xRtOT|l59!2$;j9wb<Z
zpus~13lS=K$j~7|g$WrtY^X5dLWd0>CR~KD;Uk8N5Gj1b$Ppq%i5NL*q$trMM~xmO
zT8yaCV@8V+D}Q>-*fC<oi5WX?tT^#v$BiE+UV^ys6UIxBD1O4k2@)kqm^f*oB*_vd
zO`arKiloU?CQFejdCJr&Ql&|mI&G>n=~AanpC(;~wCOXZ%aAF3#>^QqWyzR1Yo;vO
zGH1=6C0mZH*>h&gkt=)7+&OaP$(cKEt~~j2=gprdUw?tT`3vSNP$+-F!UYNyDOk8@
zp(4c!7cE|-*k479mnimE$>JqS{Z+DbiBe@smM&YWOu5o!%a<uvp=|kz<tkJvU$Jt9
zN>wUWu3D)|waQhiSE*K`YW14cYSgM;vv!SIb!yhGTdPjJ+I8#Ksn?)x{f6}#G^*dQ
zaf3!p8h<u!+Neph#!Z_yY1X1?^Ont8v})e6b&FPQTDET6s!hArZQHkL*P(6uj_o>h
zYTvPQhfZBOcJA7#OSjHlyLai<qigq`-Fo!u-m`a)UVVD@?%S(RzutZO_vtsFZ~uY)
z1`O&yaPWXZLk12WI%vqS!9#}+88%|*@R7qtjDH$Fa`cE%V@8f1J8I0h(PPJt8Ta?t
z@e{`VJ#qYmNq<kAJYmw5iIb;Jnlf$j)ag^E&6qlU=Cm2Jrq7%`W7eFRv**s5GjI0X
z`E%wim^**ryakKqFI>D}(UOIWmo8eeZ1K|NOO~xzx_srb75^+>`R|H<R;~PZ^*^iD
z{C~T8?W#5FR<B*ZX5EIh>o>03uxb6q%^Nmt*|>S@rY+kxZ{5CS+m5Z<cW&FUYx~aK
zJ9h2axqI)fJ^Oa=-M?qwfxY_=?mKX3|G~ot4jnmo_~@Y{#||Goe&pDRqsLDkJ8|mx
z$<rrJojG~>?5Q*7PM<x0=G=v|=P#bSaDVCi#mg5iUAcJq>ZL2!E?>QV<=Ty_*Kc0C
zaqIfc+c$3Axq18UtvmN_-@Sk5-h;dMAKrWL=>EgU4<0>v`1t9gC(j-~eg5Rxi>J?D
zK6~-%`ODWYUcGtw`t7SX?_R%s|K{C?x9>l``|#=g$Il-=efjwL>!&Z@K7alG<tN*Z
zuit-u`|<1h&)+|O{rUMj;Mbo(zXJmQ2^1tCaL~X3frG+-mXl!u6qB$5CzD_T6_c<6
z5Ceb!yp!PqO_QJj6qAzzM3Z0w6_XGG2LTt8Q352BumUHOU;-8bcmb1P0a6+e0Q_J7
Y1DB|G<mQA3pa1{>07*qoM6N<$f<<>&HUIzs

diff --git a/contrib/testpngs/rgb-8-1.8.png b/contrib/testpngs/rgb-8-1.8.png
index 3df5782d9d4247b49042af23d16328f0a1eb450b..d4bb12afa1101bf338bf992d67761ea1a8f0ef66 100644
GIT binary patch
delta 256
zcmV+b0ssE14YLN2n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
z!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN04f3oNkl<Zc-rmL0Sy2k
z3<JS#fPc#<n1Wq%3YvT+DYLEXIuF+B^o6wqlfeX5lW+wK0^kLc@dZnhU<DMDp#?aT
z&;%#~0l1SP1{;zFJd<Dr2?Geg3zIPgNt4h82^oL@VDtfB;R09tT^zaq0000<MNUMn
GLSTY0q+|U6

delta 1147
zcmV->1cdvu2CEH_n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1%H1@L_t(|+U?T=(inyU
zh0#B@ZQHid*tTukW@FoFW81cE+typbTS3pAvw}PG1quiV2xRtOT|l59!2$;j9wb<Z
zpus~13lS=K$j~7|g$WrtY^X5dLWd0>CR~KD;Uk8N5Gj1b$Ppq%i5NL*q$trMM~xmO
zT8yaCV@8V+D}Q>-*fC<oi5WX?tT^#v$BiE+UV^ys6UIxBD1O4k2@)kqm^f*oB*_vd
zO`arKiloU?CQFejdCJr&Ql&|mI&G>n=~AanpC(;~wCOXZ%aAF3#>^QqWyzR1Yo;vO
zGH1=6C0mZH*>h&gkt=)7+&OaP$(cKEt~~j2=gprdUw?tT`3vSNP$+-F!UYNyDOk8@
zp(4c!7cE|-*k479mnimE$>JqS{Z+DbiBe@smM&YWOu5o!%a<uvp=|kz<tkJvU$Jt9
zN>wUWu3D)|waQhiSE*K`YW14cYSgM;vv!SIb!yhGTdPjJ+I8#Ksn?)x{f6}#G^*dQ
zaf3!p8h<u!+Neph#!Z_yY1X1?^Ont8v})e6b&FPQTDET6s!hArZQHkL*P(6uj_o>h
zYTvPQhfZBOcJA7#OSjHlyLai<qigq`-Fo!u-m`a)UVVD@?%S(RzutZO_vtsFZ~uY)
z1`O&yaPWXZLk12WI%vqS!9#}+88%|*@R7qtjDH$Fa`cE%V@8f1J8I0h(PPJt8Ta?t
z@e{`VJ#qYmNq<kAJYmw5iIb;Jnlf$j)ag^E&6qlU=Cm2Jrq7%`W7eFRv**s5GjI0X
z`E%wim^**ryakKqFI>D}(UOIWmo8eeZ1K|NOO~xzx_srb75^+>`R|H<R;~PZ^*^iD
z{C~T8?W#5FR<B*ZX5EIh>o>03uxb6q%^Nmt*|>S@rY+kxZ{5CS+m5Z<cW&FUYx~aK
zJ9h2axqI)fJ^Oa=-M?qwfxY_=?mKX3|G~ot4jnmo_~@Y{#||Goe&pDRqsLDkJ8|mx
z$<rrJojG~>?5Q*7PM<x0=G=v|=P#bSaDVCi#mg5iUAcJq>ZL2!E?>QV<=Ty_*Kc0C
zaqIfc+c$3Axq18UtvmN_-@Sk5-h;dMAKrWL=>EgU4<0>v`1t9gC(j-~eg5Rxi>J?D
zK6~-%`ODWYUcGtw`t7SX?_R%s|K{C?x9>l``|#=g$Il-=efjwL>!&Z@K7alG<tN*Z
zuit-u`|<1h&)+|O{rUMj;Mbo(zXJmQ2^1tCaL~X3frG+-mXk38GLwJ;E(3r7ypurz
zVUxoFK$B1b9s?i%7n30ZLX+SD9s>b*0h6%;6q7IlGn3!}4H*1i{{xq(cjV@T2%rD}
N002ovPDHLkV1j~VRIdO4

diff --git a/contrib/testpngs/rgb-8-linear-tRNS.png b/contrib/testpngs/rgb-8-linear-tRNS.png
index 3e60b03b6734f51e8fa670543a29907e64d73856..5a2ed9f009af9200ffa7c6485accbfe524a6d056 100644
GIT binary patch
delta 255
zcmV<b0095J4aEkKs(*B8R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
z!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN04f3oNkl<Zc-rmL0Sy2k
z3<JS#fPc#<n1Wq%3YvT+DYLEXIuF+B^o6wqlaU2lk_83>1mFdeAqFjzFa{ozFa{Kp
z(FGclpan((0l1UV1Xz<m1_%QPzzdTB22GPN1_u{l^Z{St0$2N89J&Ai002ovPDHLk
FV1kb3VhjKP

delta 1158
zcmV;11bO?#2E7fCs(*87R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1%H1@L_t(|+U?T=(inyU
zh0#B@ZQHid*tTukW@FoFW81cE+typbTS3pAvw}PG1quiV2xRtOT|l59!2$;j9wb<Z
zpus~13lS=K$j~7|g$WrtY^X5dLWd0>CR~KD;Uk8N5Gj1b$Ppq%i5NL*q$trMM~xmO
zT8yaCV@8V+D}Q>-*fC<oi5WX?tT^#v$BiE+UV^ys6UIxBD1O4k2@)kqm^f*oB*_vd
zO`arKiloU?CQFejdCJr&Ql&|mI&G>n=~AanpC(;~wCOXZ%aAF3#>^QqWyzR1Yo;vO
zGH1=6C0mZH*>h&gkt=)7+&OaP$(cKEt~~j2=gprdUw?tT`3vSNP$+-F!UYNyDOk8@
zp(4c!7cE|-*k479mnimE$>JqS{Z+DbiBe@smM&YWOu5o!%a<uvp=|kz<tkJvU$Jt9
zN>wUWu3D)|waQhiSE*K`YW14cYSgM;vv!SIb!yhGTdPjJ+I8#Ksn?)x{f6}#G^*dQ
zaf3!p8h<u!+Neph#!Z_yY1X1?^Ont8v})e6b&FPQTDET6s!hArZQHkL*P(6uj_o>h
zYTvPQhfZBOcJA7#OSjHlyLai<qigq`-Fo!u-m`a)UVVD@?%S(RzutZO_vtsFZ~uY)
z1`O&yaPWXZLk12WI%vqS!9#}+88%|*@R7qtjDH$Fa`cE%V@8f1J8I0h(PPJt8Ta?t
z@e{`VJ#qYmNq<kAJYmw5iIb;Jnlf$j)ag^E&6qlU=Cm2Jrq7%`W7eFRv**s5GjI0X
z`E%wim^**ryakKqFI>D}(UOIWmo8eeZ1K|NOO~xzx_srb75^+>`R|H<R;~PZ^*^iD
z{C~T8?W#5FR<B*ZX5EIh>o>03uxb6q%^Nmt*|>S@rY+kxZ{5CS+m5Z<cW&FUYx~aK
zJ9h2axqI)fJ^Oa=-M?qwfxY_=?mKX3|G~ot4jnmo_~@Y{#||Goe&pDRqsLDkJ8|mx
z$<rrJojG~>?5Q*7PM<x0=G=v|=P#bSaDVCi#mg5iUAcJq>ZL2!E?>QV<=Ty_*Kc0C
zaqIfc+c$3Axq18UtvmN_-@Sk5-h;dMAKrWL=>EgU4<0>v`1t9gC(j-~eg5Rxi>J?D
zK6~-%`ODWYUcGtw`t7SX?_R%s|K{C?x9>l``|#=g$Il-=efjwL>!&Z@K7alG<tN*Z
zuit-u`|<1h&)+|O{rUMj;Mbo(zXJmQ2^1tCaL~X3frG+-mXl!u6qB$5CzD_T6_c<6
z5Ceb!yp!PqO_QJj6qAzzM3Z0w6_XGG2LTt8Q352BumUHOU;-8bcmb1P0a6+e0Q_J7
Y1DB|G<mQA3pa1{>07*qoM6N<$f<<>&HUIzs

diff --git a/contrib/testpngs/rgb-8-linear.png b/contrib/testpngs/rgb-8-linear.png
index 0c36bcce6496ab1fa6fe5c460474e4ed562cbc1c..7c42b0840831216f7818e8b71a39e1e30b40db97 100644
GIT binary patch
delta 256
zcmV+b0ssE14YLN2n16I>R9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
z!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN04f3oNkl<Zc-rmL0Sy2k
z3<JS#fPc#<n1Wq%3YvT+DYLEXIuF+B^o6wqlfeX5lW+wK0^kLc@dZnhU<DMDp#?aT
z&;%#~0l1SP1{;zFJd<Dr2?Geg3zIPgNt4h82^oL@VDtfB;R09tT^zaq0000<MNUMn
GLSTY0q+|U6

delta 1147
zcmV->1cdvu2CEH_n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1%H1@L_t(|+U?T=(inyU
zh0#B@ZQHid*tTukW@FoFW81cE+typbTS3pAvw}PG1quiV2xRtOT|l59!2$;j9wb<Z
zpus~13lS=K$j~7|g$WrtY^X5dLWd0>CR~KD;Uk8N5Gj1b$Ppq%i5NL*q$trMM~xmO
zT8yaCV@8V+D}Q>-*fC<oi5WX?tT^#v$BiE+UV^ys6UIxBD1O4k2@)kqm^f*oB*_vd
zO`arKiloU?CQFejdCJr&Ql&|mI&G>n=~AanpC(;~wCOXZ%aAF3#>^QqWyzR1Yo;vO
zGH1=6C0mZH*>h&gkt=)7+&OaP$(cKEt~~j2=gprdUw?tT`3vSNP$+-F!UYNyDOk8@
zp(4c!7cE|-*k479mnimE$>JqS{Z+DbiBe@smM&YWOu5o!%a<uvp=|kz<tkJvU$Jt9
zN>wUWu3D)|waQhiSE*K`YW14cYSgM;vv!SIb!yhGTdPjJ+I8#Ksn?)x{f6}#G^*dQ
zaf3!p8h<u!+Neph#!Z_yY1X1?^Ont8v})e6b&FPQTDET6s!hArZQHkL*P(6uj_o>h
zYTvPQhfZBOcJA7#OSjHlyLai<qigq`-Fo!u-m`a)UVVD@?%S(RzutZO_vtsFZ~uY)
z1`O&yaPWXZLk12WI%vqS!9#}+88%|*@R7qtjDH$Fa`cE%V@8f1J8I0h(PPJt8Ta?t
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z`E%wim^**ryakKqFI>D}(UOIWmo8eeZ1K|NOO~xzx_srb75^+>`R|H<R;~PZ^*^iD
z{C~T8?W#5FR<B*ZX5EIh>o>03uxb6q%^Nmt*|>S@rY+kxZ{5CS+m5Z<cW&FUYx~aK
zJ9h2axqI)fJ^Oa=-M?qwfxY_=?mKX3|G~ot4jnmo_~@Y{#||Goe&pDRqsLDkJ8|mx
z$<rrJojG~>?5Q*7PM<x0=G=v|=P#bSaDVCi#mg5iUAcJq>ZL2!E?>QV<=Ty_*Kc0C
zaqIfc+c$3Axq18UtvmN_-@Sk5-h;dMAKrWL=>EgU4<0>v`1t9gC(j-~eg5Rxi>J?D
zK6~-%`ODWYUcGtw`t7SX?_R%s|K{C?x9>l``|#=g$Il-=efjwL>!&Z@K7alG<tN*Z
zuit-u`|<1h&)+|O{rUMj;Mbo(zXJmQ2^1tCaL~X3frG+-mXk38GLwJ;E(3r7ypurz
zVUxoFK$B1b9s?i%7n30ZLX+SD9s>b*0h6%;6q7IlGn3!}4H*1i{{xq(cjV@T2%rD}
N002ovPDHLkV1j~VRIdO4

diff --git a/contrib/testpngs/rgb-8-sRGB-tRNS.png b/contrib/testpngs/rgb-8-sRGB-tRNS.png
index 4c349ee62b53b604ad00cf3cf0994054b9c64238..f8b4ecbdc69d05e45b655031ea6856ebcf5cb672 100644
GIT binary patch
delta 272
zcmeC<oyInyy1pbcB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
zneL^;)3}k_e?4bxy}foa*FA|uuG^hedG1^tvud?g<P`MYyVPGWYxA_e_RS?pMR^Ca
z<CgK4ZN7D1>EZjfh39VVGwMs$5TAYO@(EsJBdw+zGuEmxFlaHcdAc};RNQ)dnUR-4
zfrt5EUPJw9jTud`#ay#$R5drReQm{m?bVmott^uZS-mGeU=d|zdB8fEkxg#002@CV
z28y%BOg3O;VPf1dc_WMG<n=7#%p3=}CqHDhgDPbgPx!(Z|BxyCcdX1V1|aZs^>bP0
Hl+XkK7VczE

delta 1175
zcmV;I1Zew~296Dodw+9jR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1%H1@L_t(|+U?T=(inyU
zh0#B@ZQHid*tTukW@FoFW81cE+typbTS3pAvw}PG1quiV2xRtOT|l59!2$;j9wb<Z
zpus~13lS=K$j~7|g$WrtY^X5dLWd0>CR~KD;Uk8N5Gj1b$Ppq%i5NL*q$trMM~xmO
zT8yaCV@8V+D}Q>-*fC<oi5WX?tT^#v$BiE+UV^ys6UIxBD1O4k2@)kqm^f*oB*_vd
zO`arKiloU?CQFejdCJr&Ql&|mI&G>n=~AanpC(;~wCOXZ%aAF3#>^QqWyzR1Yo;vO
zGH1=6C0mZH*>h&gkt=)7+&OaP$(cKEt~~j2=gprdUw?tT`3vSNP$+-F!UYNyDOk8@
zp(4c!7cE|-*k479mnimE$>JqS{Z+DbiBe@smM&YWOu5o!%a<uvp=|kz<tkJvU$Jt9
zN>wUWu3D)|waQhiSE*K`YW14cYSgM;vv!SIb!yhGTdPjJ+I8#Ksn?)x{f6}#G^*dQ
zaf3!p8h<u!+Neph#!Z_yY1X1?^Ont8v})e6b&FPQTDET6s!hArZQHkL*P(6uj_o>h
zYTvPQhfZBOcJA7#OSjHlyLai<qigq`-Fo!u-m`a)UVVD@?%S(RzutZO_vtsFZ~uY)
z1`O&yaPWXZLk12WI%vqS!9#}+88%|*@R7qtjDH$Fa`cE%V@8f1J8I0h(PPJt8Ta?t
z@e{`VJ#qYmNq<kAJYmw5iIb;Jnlf$j)ag^E&6qlU=Cm2Jrq7%`W7eFRv**s5GjI0X
z`E%wim^**ryakKqFI>D}(UOIWmo8eeZ1K|NOO~xzx_srb75^+>`R|H<R;~PZ^*^iD
z{C~T8?W#5FR<B*ZX5EIh>o>03uxb6q%^Nmt*|>S@rY+kxZ{5CS+m5Z<cW&FUYx~aK
zJ9h2axqI)fJ^Oa=-M?qwfxY_=?mKX3|G~ot4jnmo_~@Y{#||Goe&pDRqsLDkJ8|mx
z$<rrJojG~>?5Q*7PM<x0=G=v|=P#bSaDVCi#mg5iUAcJq>ZL2!E?>QV<=Ty_*Kc0C
zaqIfc+c$3Axq18UtvmN_-@Sk5-h;dMAKrWL=>EgU4<0>v`1t9gC(j-~eg5Rxi>J?D
zK6~-%`ODWYUcGtw`t7SX?_R%s|K{C?x9>l``|#=g$Il-=efjwL>!&Z@K7alG<tN*Z
zuit-u`|<1h&)+|O{rUMj;Mbo(zXJmQ2^1tCaL~X3frG+-mXnbIRg+)=3j=@vyp!<(
zRg;hc3zKpJHj_XC29uBi7?VH(29uBi1p^=e7n3mp6_bzx7?VH(29uBi7?VH(29uBi
p4+8;s0h6%;PLm)41{nNb{{xq(cjV@T2%rD}002ovPDHLkV1i&%TU-DD

diff --git a/contrib/testpngs/rgb-8-sRGB.png b/contrib/testpngs/rgb-8-sRGB.png
index 90ef10c5d9c3f7ae114a6ada57a2e119f65bd160..4acae649d387ee0a259428e9e210d2dc3e4f98a4 100644
GIT binary patch
delta 248
zcmV<U00;m441@-dX@7KSR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
z!E0Wo4|cQK-y-4fhM~^dzA}zuC>NW`)5r}oGAe@Dn5`xN04f3oNkl<Zc-rmL0Sy2k
z3<JS#fPc#<n1Wq%3YvT+DYLEXIuF+B^o6wqlMx0}lOP2R0|ej&lhFk{li&p-lYs>(
ylduFg0s**_kOWwh@C6712*3-Iu?18YVDtfB;R09tT^zaq0000<MNUMnLSTaYvtkke

delta 1153
zcmV-{1b+L32K)?=X@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$1%H1@L_t(|+U?T=(inyU
zh0#B@ZQHid*tTukW@FoFW81cE+typbTS3pAvw}PG1quiV2xRtOT|l59!2$;j9wb<Z
zpus~13lS=K$j~7|g$WrtY^X5dLWd0>CR~KD;Uk8N5Gj1b$Ppq%i5NL*q$trMM~xmO
zT8yaCV@8V+D}Q>-*fC<oi5WX?tT^#v$BiE+UV^ys6UIxBD1O4k2@)kqm^f*oB*_vd
zO`arKiloU?CQFejdCJr&Ql&|mI&G>n=~AanpC(;~wCOXZ%aAF3#>^QqWyzR1Yo;vO
zGH1=6C0mZH*>h&gkt=)7+&OaP$(cKEt~~j2=gprdUw?tT`3vSNP$+-F!UYNyDOk8@
zp(4c!7cE|-*k479mnimE$>JqS{Z+DbiBe@smM&YWOu5o!%a<uvp=|kz<tkJvU$Jt9
zN>wUWu3D)|waQhiSE*K`YW14cYSgM;vv!SIb!yhGTdPjJ+I8#Ksn?)x{f6}#G^*dQ
zaf3!p8h<u!+Neph#!Z_yY1X1?^Ont8v})e6b&FPQTDET6s!hArZQHkL*P(6uj_o>h
zYTvPQhfZBOcJA7#OSjHlyLai<qigq`-Fo!u-m`a)UVVD@?%S(RzutZO_vtsFZ~uY)
z1`O&yaPWXZLk12WI%vqS!9#}+88%|*@R7qtjDH$Fa`cE%V@8f1J8I0h(PPJt8Ta?t
z@e{`VJ#qYmNq<kAJYmw5iIb;Jnlf$j)ag^E&6qlU=Cm2Jrq7%`W7eFRv**s5GjI0X
z`E%wim^**ryakKqFI>D}(UOIWmo8eeZ1K|NOO~xzx_srb75^+>`R|H<R;~PZ^*^iD
z{C~T8?W#5FR<B*ZX5EIh>o>03uxb6q%^Nmt*|>S@rY+kxZ{5CS+m5Z<cW&FUYx~aK
zJ9h2axqI)fJ^Oa=-M?qwfxY_=?mKX3|G~ot4jnmo_~@Y{#||Goe&pDRqsLDkJ8|mx
z$<rrJojG~>?5Q*7PM<x0=G=v|=P#bSaDVCi#mg5iUAcJq>ZL2!E?>QV<=Ty_*Kc0C
zaqIfc+c$3Axq18UtvmN_-@Sk5-h;dMAKrWL=>EgU4<0>v`1t9gC(j-~eg5Rxi>J?D
zK6~-%`ODWYUcGtw`t7SX?_R%s|K{C?x9>l``|#=g$Il-=efjwL>!&Z@K7alG<tN*Z
zuit-u`|<1h&)+|O{rUMj;Mbo(zXJmQ2^1tCaL~X3frG+-mXi?zBa>hPHj@wn2Lpfr
zyptgTQIjwN1e3r43zI?uRFe<_3j-hk7n1=3Gm~HfEdv2~0h1sBQW_8d{9peAm#BB-
T=7b2K00000NkvXXu0mjflkigJ

diff --git a/contrib/testpngs/rgb-8-tRNS.png b/contrib/testpngs/rgb-8-tRNS.png
index 3d974fe58df6464ca07afed05ad6ed60636290ba..cdb1642ebad2e8e697f0e48a7ff5b2376ad51661 100644
GIT binary patch
delta 254
zcmZqV?PQyf$5=8kU#woY$Cs~JL7;X0r$>x3yK|>k2)0c3QsQac$nC$LGq&DdJDKaA
zL?YMi&Z<0ju8vu?S}Sr2dhcE8FPOD?T3`F-lBA-%gV}M*_{%omy07%`ecQrwxAqzJ
zC2NS!K6Uv7ud$I<(~TKx)fgC<*gRbvLn>~)z0AnVpuod?Ft4Hhw8jkKrr2VxSv9Jf
zo7cX!;=lIlOY2sa$rD-SCNE&+N5gE)EDu;GFJ$qVe1JuG@<G<X$s1VsnHYCWE@ZVs
mQp&>2ae#aB1eOr-gfEQo51GP$$I9$t00K`}KbLh*2~7Yh?_+lW

delta 1127
zcmV-t1ep7Y27wKbZUJ+VZx(+g%s~!>AP_{+t5iIIty^6(7jdAXBm+&L$Aza?!}`Dc
z4@2~uF~Agd5as{<MUS9qiy4I#uJQqJnv&**r!qHUaBjjpPQ!}Bth7bMzcQZmosL>}
z>A${{i&f<YDu*cLWTz#?000GlNkl<Zc-rmL1JW3V0)^2(wr$(C(b#{sZQEvJ+i7Fl
zwr$(iTftjF&z-Y^JM#q!2nYyd_Fr8<pdi5l2Mr!1Scss(Lk0^GDtO4yAwq=-89HpJ
zFyTUn4Id_4gs|ZwhKmp>e8k8RB1MT9IclUR(IQ8U9wl0gsL^9aixDe&%-Atv#fcd^
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zNtrrrsx;|Rr%j(GU52#jGp5UsDSgJw88T(bm^o{vEZH(=&7LJ&j;z^pX3LQ)d(PZB
za^=aHJ8!N$`EuvYpC?~|y!i{}D^MtZ!NLU!6)9M_XrUs-3KxGZUZmJxMT?gx_E*W`
zB})BOvUG`3WlEMVTdGXC(q+q+DOaIv`HJN#R4QMwa)nA&DpsyqsY<oVRjXI2R-<b5
zn$>F5s$R2pjaqeT)~;KtPQBW7>({B*pl<z!^%^v)->`9mMok(vZrZ3xv&K!EH)+<Q
zY4euNTC{53vUPupR&83gZriF&yVh;nw`td*ZTpVxI&^B^v2%w`T{?E|+Nn#o&Rx5A
z>DHrb_nzH)^y=QTcaL6udiL(yt53h)ef#(6H=u9-f&B&y>OXMsfI&kB4jwva$gsgf
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zf9KwVyZ0a7d+_M~!^aOEJ$d-}>7ysl9zT8l<k^d-&tE=!@#^`@*DqeZdHMS7t2ggn
zzkUDa-G{gDKfe3$>HWvgA3lBg`1$LnFW)|Y{r=_KkFVc<e*5w3`_JD$e*O9RJK)!!
zK)(<J0{;mVBp`6mzyX1S!he>NQ36VnumKhWfB?Lc5dtWaFabD|ApusC&;bhp7n4B(
tT9dE=1_J?j0h0j&IFm2|92opx{{xq(cjV@T2%rD}002ovPDHLkV1oX*OvV5J

diff --git a/contrib/testpngs/rgb-8.png b/contrib/testpngs/rgb-8.png
index e4850835e8ea207b116b19e362840159e235bb69..e69c71bfd57998b71aba94b56dee8a0d20265ec7 100644
GIT binary patch
delta 123
zcmeys^PP3VZ7n7?PZ!6Kid%0lGx9Ph@Gu|DYp6f1F{3HAm}^#zs^;dkudVp6z53F+
zm1S}vtM23mRyiORWoCK6I=PW0dh!AmmdOiQ6B&0*4rKKO$_O)a9N?b(kX2#w1QrwV
agfEQo51GP$$I9$t00K`}KbLh*2~7ZWku2N*

delta 1020
zcmV<Y0|Wf`1@H`z+kXXrNkl<Zc-rmL1JW3V0)^2(wr$(C(b%?a+h$|iX=B^AZQIsc
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zyMJ)${Kd-`E?v2J`Rb)B*DhbZe&yPYtJiN{yK(FK&D%F_-MM-D?yWobZr{Cs=iY<6
z_aEMS@aX=-#}6JodHDG0qbJWEKYjk>*^8&oUp{;B>iNspFJ8TQ`TFgvH}77*egEd&
zhqv!PzWea${m0KAK7IN4`Rk`I-#&l+{wU?!kFVc<e*5w3`_JD$e*O9RJK)!!K)(Y5
z{|OW%AaKyY0fB?Uf0mPh0Y;PX0U85<0KAjo0Y;O60tu6V0TGj80w<Gz0XPF702h;S
q0alYx0SW^Fcmb2q0aO_LU;hJ_sCVS%gb1Jj0000<MNUMnLSTaRavYTa

diff --git a/contrib/testpngs/rgb-alpha-16-1.8.png b/contrib/testpngs/rgb-alpha-16-1.8.png
index 931113f22ad58e060a9d460ab5530dd43a538089..ad65d150e23f08e419facaa791faa5d17c4784d4 100644
GIT binary patch
literal 1437
zcmeAS@N?(olHy`uVBq!ia0y~yU<5K583fpX6wjj)RUpNZ?&#~tz{ps-dGfvvAYUQb
zBgmJ5p-PQ`p`nF=;TKS-;RORjsR0ASs{{rHs~HRo;stYd1=;{5bV^(!N}TfxDvL7H
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literal 2028
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diff --git a/contrib/testpngs/rgb-alpha-16-linear.png b/contrib/testpngs/rgb-alpha-16-linear.png
index fccf8cf4fbb2f17c8f7bb84980a8f1bcae18ed06..1f399003173a558a55e7a0312f4a796b39cf99a2 100644
GIT binary patch
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diff --git a/contrib/testpngs/rgb-alpha-16-sRGB.png b/contrib/testpngs/rgb-alpha-16-sRGB.png
index 009ef182484d44489a9c9631e260b2faf137fa39..d9cea633a5e781eedf91a5bc4ffdad0e9f16e799 100644
GIT binary patch
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diff --git a/contrib/testpngs/rgb-alpha-16.png b/contrib/testpngs/rgb-alpha-16.png
index 384025712a165af3b5292a837b59cd4417248c72..59262397eb5b4adc3e833e066f0cc19323a53d88 100644
GIT binary patch
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diff --git a/contrib/testpngs/rgb-alpha-8-1.8.png b/contrib/testpngs/rgb-alpha-8-1.8.png
index ae00495529803717a590d6e2cdcf1fe9edec732d..f4d08ec04714b59ce33cb9cdf731e898561b42a2 100644
GIT binary patch
delta 299
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delta 1470
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diff --git a/contrib/testpngs/rgb-alpha-8-linear.png b/contrib/testpngs/rgb-alpha-8-linear.png
index 4051316d75700954f0d5e4c876c7251140005e91..b4f8bc8294125cd98722d86e7b950ccfdbfbfe37 100644
GIT binary patch
delta 299
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g4uvnt!SLY$`#zO_3m2YPFT(%?p00i_>zopr0G~c?zW@LL

delta 1470
zcmV;v1ws0k2d@y2n16F=R9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$2Y&-eL_t(|+U?ZSwit#2
zMbQ&GX>7EyZ6}Rw+qP}nwr$(CZQH)TaNj%k81o1A!wM7-5D*Z^%>I)L2oxk(h`>RE
zhYS)dM5v&_Lxv6(B2<{*Aw!1^5h_f$kfFnd4;3a{gwSEb{}m=&got6o{}m}*gou&D
z{}m}pgou%&{(luIO0<ZPqehPuC0dNgQKQF<5-moosL^A_jus<UoaixQ$BhvyPP~}0
z<HnB_CtiZsapV6TCtiYo;>Q0wVY~$YB#Qrc!o&&wNtER8go%^>lPF2Dgo%?TPn0BC
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zo44=Yzjf!{gWGrSKfH7A!K1tPA3nbK;L(%&4<A2$@aW02hmW5=fAr+pi^or&zkKrS
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Y0~l%Sy;03HQ~&?~07*qoM6N<$g1ONPZvX%Q

diff --git a/contrib/testpngs/rgb-alpha-8-sRGB.png b/contrib/testpngs/rgb-alpha-8-sRGB.png
index 82699524031d66de160a9718a5f4fea037ee1010..f06e7f837cb38310c26d85b53f719fac7533281e 100644
GIT binary patch
delta 296
zcmZn=c)>Oyv%VxVB%;J8GdVS{I5RJufsr9KkAZ>Xx^9mzU$cTh>-tZR7-e?nPOlJb
zneL^;)3}k_e?4bxy}foa*FA|uuG^hedG1^tvud?g<P`MYyVPGWYxA_e_RS?pMR^Ca
z<CgK4ZN7D1>EZjfh39VVGwMs$5TAYO@(EsJBdw+zGuEmxFz7L5dAc};RNQ)dWhd_e
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zL3nZ?doZK=WJNY3sEi1+0)yY=gY4>)53p*nI55aCPCm$H1yn9J`4O8WR4Yh33ld*Q
c{KEtGeJcMJE<CYbh5-mXUHx3vIVCg!0L#mC_W%F@

delta 1468
zcmV;t1w;Di27nNdX@7HRR9JLOX=7z>b7^j80097HZU6uX*CotB4ul{OMA55MJb<lR
zT{0JOprRxLO`ykxr&q)Jzx)qF^qVoj6m}5h|NTXeplOR4g%z&y0dSg<=7y&-H)3#Z
z!aPpHio>k5MZ~`{p7foLT6gKczLSep<pwH;DCK0QCB*;$2Y&-eL_t(|+U?ZSwit#2
zMbQ&GX>7EyZ6}Rw+qP}nwr$(CZQH)TaNj%k81o1A!wM7-5D*Z^%>I)L2oxk(h`>RE
zhYS)dM5v&_Lxv6(B2<{*Aw!1^5h_f$kfFnd4;3a{gwSEb{}m=&got6o{}m}*gou&D
z{}m}pgou%&{(luIO0<ZPqehPuC0dNgQKQF<5-moosL^A_jus<UoaixQ$BhvyPP~}0
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WY3#jG%`{X10000<MNUMnLSTaM90?u(

diff --git a/contrib/testpngs/rgb-alpha-8.png b/contrib/testpngs/rgb-alpha-8.png
index 6507aeae6db3b5e7b1ce60f24475137503553ecd..e15d4913f2d3df822129e6a771df02f0b31434f3 100644
GIT binary patch
delta 270
zcmV+p0rCFx58DQiTz_<FR9JLOX=7z>b7^j80097HZU6uX*DZ`q4uc>Ng|G7B0UWz+
zmv|9`mr5cGfw2ouuL)g$KPzJj-WXvD+lhK^M+%6VeJZGIaE;#5k8ql^mX3$BbYgOD
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Up`pmH8~^|S07*qoM6N<$g5yMHmH+?%

delta 1470
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z{}m}pgou%&{(luIO0<ZPqehPuC0dNgQKQF<5-moosL^A_jus<UoaixQ$BhvyPP~}0
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