Created attachment 90464 [details] The screenshot The systemsettings background is not white, it has a mesh of grey and white. I'm attaching a screenshot.
I can confirm this
it has a slight gradient, and that pattern of grey and white is due to 24 bits not being enough to represent the gradient correctly
*** Bug 351878 has been marked as a duplicate of this bug. ***
dithering is the only solution to anyone without a 10 bits per channel monitor, it really become visible in low quality TN, well calibrated sRGB will show very slight changes, but still an 8 bit channels limitation present in majority of monitors...
*** Bug 400884 has been marked as a duplicate of this bug. ***
Created attachment 116303 [details] The same issue is present in breeze dark, although less faint The bug is still present in 5.14.2. I attached a screenshot to show what it looks like in breeze dark
Git commit ed4367d86a6324023ba17624b6731f861f68f173 by Nate Graham, on behalf of Jan Przybylak. Committed on 19/11/2018 at 02:32. Pushed by ngraham into branch 'master'. Remove the background gradient from icon view Summary: The icon view showed a very faint gradient in the background. It looked weird, broken and not really like a gradient for some reason. I think it looks better now. There are some screenshots attached to the bug report. FIXED-IN: 5.15.0 Reviewers: #vdg, ngraham Reviewed By: #vdg, ngraham Subscribers: ngraham, plasma-devel Tags: #plasma Differential Revision: https://phabricator.kde.org/D16998 M +0 -44 icons/CategoryDrawer.cpp https://commits.kde.org/systemsettings/ed4367d86a6324023ba17624b6731f861f68f173
Created attachment 116657 [details] System Settings background, non-breeze I know this bug is marked resolved / fixed, but just wanted to point out that this function *can* look nice and add a touch of class when used with different color schemes, for example the attached custom QtCurve / color combo
... and the screen shot in comment #8 still shows a vertical lines pattern because Qt doesn't use dithering in gradients. If you don't see it, you are lucky. Either bad sight, or bad display :)