What can we do to bypass the Godot color tolerance bug?

[BrotherShort]

#1155 reported a color tolerance bug.
The bug is from Godot. There is a Godot issue about it. godotengine/godot#59983 It won't be fixed by Godot soon.
Maybe for games, it's not a too bad bug, but for image processing software, it's damaging.
Can Pixelorama do something to bypass the bug? Pixelorama always uses FORMAT_RGBA8 as image format. I think we could use FORMAT_RGBAF instead of FORMAT_RGBA8. FORMAT_RGBAF won't departure trigger the bug.

[OverloadedOrama]

If the bug doesn't occur when using FORMAT_RGBAF it might be our best bet. I wonder if there are any drawbacks to performance however. From what I see in the documentation, each channel has 32-bit floating point values, compared to RGBA8's 8-bit. I assume this would result in RGBAF needing more memory? Perhaps if there is no other drawback we could have FORMAT_RGBAF by default and let users change to RGBA8 if they want to save memory.