On Plasma 5.9 beta, if I hover over the icons of the launcher (pinned icons), the icon that shows in the tooltip is really pixelated. I tried unpinning the icon and pinning again and it did not fix the bug.
I think we fixed this post beta, Roman? Kai?
Yes, should have been fixed by Kai in https://cgit.kde.org/plasma-framework.git/commit/?id=0a7ae2ce97c41ef86e3feb8086eadef01fb07078 I.e. fixed in Frameworks 5.31.