I've seen that NavigationToolbar2QT uses a mixture of svg and png icons. All icons except the <qt4_editor_options> icon are provided in svg as well as png format. Can you add a png version of this icon?
Background: I'm using pythonxy and built my stuff including a Qt MatplotlibWidget + Toolbar with py2exe. The resulting application only supports png images so I changed the icons in backend_qt4 to *.png but the <qt4_editor_options> icon cannot be displayed this way. Maybe I could recompile PyQt4 with svg support but this is not really an option since I don't know how to do this.
Dipl.-Ing. Sebastian Voigt
Technische Universität Dresden
Institut für Verarbeitungsmaschinen und Mobile Arbeitsmaschinen