[Bug 52301] New: Firefox installer shows black rectangles

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52301

Bug ID: 52301
           Summary: Firefox installer shows black rectangles
           Product: Wine
           Version: 7.0-rc3
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 71455
  --> https://bugs.winehq.org/attachment.cgi?id=71455
Black rectangle in Firefox installer

Firefox 91 ESR 64bit installer shows black rectangles. It is just a minor issue
not affecting functionality.