SUMMARY I love the translucent effect, but I don't think there are enough options for me. I would like to suggest some form of exclusion for Picture in Picture mode. STEPS TO REPRODUCE 1. Set Desktop Effects "Translucency" to trigger on inactive windows 2. Get a Picture in Picture window 3. No matter how you set the Picture in Picture window, the slider only works if the opacity is less opaque than the "Translucency" effect. OBSERVED RESULT Cannot make the Picture in Picture window excluded from transparency. EXPECTED RESULT Picture in Picture window would appear not transparent with "Special Window Settings" to bypass ADDITIONAL INFORMATION It would be a great addition for single monitor setups.
Part of the challenge here is even identifying what windows are picture-in-picture windows; on Wayland this requires a new protocol. One such protocol is in development: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/132 If and when that's merged, KWin and web browsers will have to implement support for it, and then the request here could be considered.