def _glyphset_List_doubleClickCallback(self, sender): sel = sender.getSelection() if not sel: return if self.ui.glyph is None: return OpenGlyphWindow(self.ui.glyph) gw = CurrentGlyphWindow() appearance = NSAppearance.appearanceNamed_( 'NSAppearanceNameVibrantDark') gw.window().getNSWindow().setAppearance_(appearance)