[Bug 57538] New: Systray icons don't clean their former background and look sloppy

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57538

Bug ID: 57538
           Summary: Systray icons don't clean their former background and
                    look sloppy
           Product: Wine
           Version: 10.0-rc2
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 77605
  --> https://bugs.winehq.org/attachment.cgi?id=77605
WinRAR systray icon

I'm quite sure the bug already exists but I cannot find it. It's extremely old,
I've had it for as long as I remember myself.

Environment: Fedora 41, XFCE, DPI=120.

To explain it:

E.g. put WinRAR into background or simply run WinAMP (with the systray icon
enabled).

The resulting icons will keep pieces of the previous background from a native
Linux application that was running before them, in my case it's nm-applet.

The issue does not affect native Linux applications.

It looks like Wine doesn't do something that native X11 applications do. Fill
it first with #000000? I don't know.

Check the attached screenshot.