Created attachment 108799 [details] screenshot See the screenshot. Arch Linux, Gnome 3.26.2
I see that, but why do you think this is a bug in krita? Krita doesn't send any notifications.
it does not happen with notifications from other programs.
So what? Krita doesn't send notifications. This notification is sent by gnome to tell you that krita is finished starting up. The gnome shell selects and icon for it; if it selects one at the wrong size, or doesn't scale it, it's a shell bug.
(In reply to Boudewijn Rempt from comment #3) > So what? I don't know. I'm an end user, not a software developer.
We cannot fix it; this is not in our code. It needs to be reported to the Gnome Shell team: https://bugzilla.gnome.org/
https://bugzilla.gnome.org/show_bug.cgi?id=790243
Thanks!