Adding --class to submenu label
I have been designing grub2 themes and have hit an issue with the submenu label. In order to associate an icon with the submenu item, I need to add a class to the submenu label, in this case "--class submenu". This allows grub2 to show an icon with the same filename, i.e. submenu.png.
I cannot find a way to add the class in Grub Customizer itself. When I add it to the 10_linux script, and run update-grub, the class is added okay. However, when I use the proxy script, the class variable is not passed on. Is this a limitation of the proxy program - or am I missing something? If this is an issue with the proxy program, is it possible to fix it?
TIA.
Paul
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