@ngSliver, reporting stuff during the beta is super important! 🙂 We still have some occasional crash reports that some people are able to reproduce, but no one has explained what they are doing.
The colour space shown in GIMP is only listed as RGB
You probably want to look at the color profile tab (but I'm not much of a GIMP user).
We got the mage project you emailed, thanks. The PNGs are different from what you first posted:
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This doesn't have the sRGB chunk, instead it has gAMA 0.45455 (which is an approximation of sRGB, but not exactly the same).
I found Spine has a bug where it assume the input images are sRGB even if they have gAMA, so what you see is Spine applying both sRGB and gAMA, which is wrong. To prevent the sRGB assumption, we'd need to 1) convert sRGB back to linear, then apply gamma (I worry this might be lossy), 2) rewrite the code that reads PNGs (because silly Java is doing it wrong), or 3) always assume sRGB and ignore gAMA. That last option will make almost all PNG images correct, as relying on gamma in PNG isn't great anyway. Images that do rely on gamma will appear incorrectly, such as the famous apple-pear. I think that is probably fine for Spine's usage and it's what we'll do in 3.7.83, but we'll revisit doing it correctly in the future.
TLDR; you should be ok in 3.7.83. Sorry for the trouble!
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