[Bug 56622] New: Systray icons now have black background without compositor, and on some panels can be misaligned or don't redraw, becoming invisible

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56622

Bug ID: 56622
           Summary: Systray icons now have black background without
                    compositor, and on some panels can be misaligned or
                    don't redraw, becoming invisible
           Product: Wine
           Version: 9.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: trivial
          Priority: P2
         Component: winex11.drv
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Starting from 48e6bf3cf1aabdd2ac640f572416b9169e324f21, when using panels like
IceWM's, fbpanel or tint2, systray icons are now black.

Additionally, on IceWM, systray icons can become misaligned.

On fbpanel the icons seemingly don't redraw often enough either, as when a
tooltip icon is shown over it, it stays, and when a new systray icon is shown,
all previous icons become invisible until they get redrawn again, if ever.

I have tested this on numerous systems running Arch Linux, with consistent
results. I am running multiple instances of Wine's taskmgr.exe as a test
program, as that shows a tray icon that periodically redraws itself.