[MacPorts] #65892: gtk3: windows displayed as all black, for x11 install

[MacPorts]

#65892: gtk3: windows displayed as all black, for x11 install
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  Reporter:  asic512     |      Owner:  mascguy
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  monterey x11
      Port:  gtk3 gnome  |
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Comment (by asic512):

 I should add that I work with XQuartz 1.20.11.
 Is there any known problem with gtk3?
 I should also add that a white background keeps white while
 a grey background becomes black after moving the mouse. Can I fix this
 configuring differently gtk3? Anyway most of the icons look strange.

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Ticket URL: <https://trac.macports.org/ticket/65892#comment:8>
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