@w1hkj Thanks for testing and the output. Although I'm not sure how this all plays together [edit: but please see below!], it certainly looks strange if the selection color and the background colors are all the same.

I can repeat on other platforms, but it certainly looks like the color map is system dependent.

Sure, but it's not only system dependent, it depends also on your desktop theme and so on, i.e. on personal preferences. Anyway, no need to test further, thanks - for now. It may be interesting though to see why this happens, but that's something maybe for later.

I'll look further into the issue after the fl_contrast() stuff is done. My assumption is that we need to change the drawing and use fl_contrast() and I'd like to have this fixed before I investigate further.

For a quick test, can you please:

1. revert your source file(s) to the original contents
2. apply the attached tiny patch light_button.diff

so we can see if this fixes the issue.

From what I know now (thanks for the test data) it should fix your issue but it's maybe not a complete solution.

Looking forward to your new test results. TIA.

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