Replaced removeUnusedGrads with a more generic removeUnusedDefElems to remove unused filters, markers, etc
Replaced removeUnusedGrads with a more generic removeUnusedDefElems to remove unused filters, markers, etc
kvasilov48/SVG-edit,kvasilov48/SVG-edit,korya/svg-edit,korya/svg-edit,korya/svg-edit,kvasilov48/SVG-edit,korya/svg-edit