The Adwaita Icon Theme no longer follows the FDO icon naming spec breaking KDE applications on Fedora 40 Workstation and Co. See the concrete state of the issue in the linked article.
This is probably one of the most frustrating bug tracker threads to date...
"Your theme isn't FDO-compatible"
"We don't care, not our problem"
"Please remove the FDO-compatible marking on your theme"
"Sounds like a YOU problem"
"Its your theme"
"... bug closed"
And they added back Tango as a fallback and the bug is fixed because now its FDO-compatible... I am pretending the snark at the end by Jakob isn't there and its all good
Just a quick screenshot from Kate 24.04.80 (beta1 before 24.5.0) on Haiku, I'm not sure if Haiku respects the FDO naming spec, but atleast the icons aren't broken so fallback to the breeze icons for the ones not present in Haiku's icon set still seems to be fine. :)
*removed externally hosted image*
Nice :) In my new post I did try the current KF5 Kate on Haiku, too, works. https://cullmann.io/posts/kde-applications-and-icons/
