Hello. I have been playing with inkscape, because I was unhappy about the shadows on the panels on Arc Plasma. So here it is free to download 
Download: https://drive.google.com/file/d/1V6RTRvxqZEAQkMde7HHpMaSpSoA1VRHP/view?usp=sharing
Unpack it in ~/.local/share/plasma/desktoptheme/
Screenshots:
