Created attachment 110602 [details] QuickShare modal window When we place QuickShare widget inside panel that is not stretched to full screen size but is smaller and maybe centered we can see that the modal window has at the bottom like 10px darker line that seems to be missing background in this section (see attached screenshot). Same things sometimes happen on the right edge of this modal window.
Created attachment 110603 [details] confirming example Example with centred panel.
Created attachment 110604 [details] example with panel full width Example with panel full width again, after being centred. Similar border artefact is visible on right hand edge as well.
Created attachment 110663 [details] Doesn't really happen here :( Which version of frameworks are you running? Any pointers would be welcome.
Atm. i'm on Neon User Edition with: Plasma 5.12.1 Frameworks 5.43.0 Qt 5.9.3 Nvidia GPU with propriety driver Kernel 4.15.x
I'm afraid this widget has been removed in Plasma 6, and as a result all development activity for it has ceased so no bug reports can be expected to be fixed. Sorry if that's not the result you were hoping for!