SUMMARY When a panel is set to Opaque, solid/ assets are expected to be used. Upon further review, when the panel is set to Opaque, the tooltip.svg is not used, but dialog/background.svg and widgets/panel-background.svg are. This type of problem has appeared a few times in Plasma history before. STEPS TO REPRODUCE 1. Apply a Plasma Style that has different appearances between Opaque and Translucent, such as Breeze (I used Sumac Day Molten Glass) 2. Set your panel Opacity to Opaque 3. Ideally against a colorful background, compare the panel to a tooltip popup OBSERVED RESULT Tooltip is not opaque and background is visible behind it. EXPECTED RESULT Tooltip should use the appropriate opaque assets. SOFTWARE/OS VERSIONS Operating System: CachyOS Linux KDE Plasma Version: 6.5.2 KDE Frameworks Version: 6.19.0 Qt Version: 6.10.0 Kernel Version: 6.17.7-3-cachyos (64-bit) Graphics Platform: Wayland ADDITIONAL INFORMATION Though I have not checked, the shadow is usually forgotten here as well and may be inheriting from the regular assets.
Created attachment 186824 [details] The solid asset is not used for the tooltip
I can confirm the same behavior on Plasma built from git-master, using Sumac Night Molten Glass