Tooltips are never transparent if no CSD shadows
Submitted by Sorokin Alexei
Link to original bug (#763993)
Description
Created attachment 324435 Conditionaliser to fix the issue
If Client Side Decorations shadows are disabled due to lack of _GTK_FRAME_EXTENTS atom, Gtk kills transparency for tooltips (even in non-CSD windows).
Patch 324435, "Conditionaliser to fix the issue":
gtk3-tooltip-transparency.patch
Version: 3.20.x