Has anyone had any luck using Inkscape to edit custom SF Symbols?
It seems to work OK except that it doesn't understand the required layer structure. The layers are SVG group elements, which Inkscape doesn't seem to treat as layers. I think it must need some additional attributes to distinguish layers from other groups, or something.
Edited to add: specifically it seems to need the attribute inkscape:groupmode="layer" on the element. I'm going to try adding this manually to the template and see what happens!