- in Legacy2D graphic engine fixed setting the Opacity functionality

- fixed a recent issue where Gerber files made out of single polygons were not processed

appGUI/preferences/general/GeneralAppPrefGroupUI.py

@@ -80,9 +80,6 @@ class GeneralAppPrefGroupUI(OptionsGroupUI):
                                   {'label': _('OpenGL(3D)'), 'value': '3D'}],
                                  orientation='vertical')
 
-        # TODO disabled until matplotlib will support PyQt6
-        self.ge_radio.setDisabled(True)
-
         grid0.addWidget(self.ge_label, 6, 0)
         grid0.addWidget(self.ge_radio, 6, 1)