SUMMARY The contrast effect saturates in such a way that the result color does not look good on the wallpaper anymore; Here's a clear example of what I expect, and what the contrast effect do: This is my wallpaper: https://i.postimg.cc/PxMDS6Ld/Volna4k-Edit.png This is my manually saturated wallpaper: https://i.postimg.cc/QdsHyg3t/image-4.png This is a dialog (without contrast effect) applied on top of the above image: https://i.postimg.cc/MpKzB9wy/Screenshot-20200124-171123.png Proper orange! Here's a dialog using the contrast effect and the saturation value (strengthen to make my point more clear): https://i.postimg.cc/qMD5mwnc/image.png Bad yellow-ish color; I'm not sure how this was computed. It is also based on the "BackgroundNormal=" color in the color file, as dark themes use a more proper saturated color. STEPS TO REPRODUCE 1. Change contrast of Breeze theme from 0.2 to 1.0 2. Change saturation to 1.7 Expected: proper orange Observed: bad yellow-ish tint SOFTWARE/OS VERSIONS KDE Plasma Version: 5.17.5 KDE Frameworks Version: 5.6 Qt Version: 5.14
Setting intensity=1 makes the contrast-effected dialog look like the one did by manually changing the saturation. Is it possible that it's calculated wrong maybe?