Sources for graphics

I’d like to create some custom buttons/graphics in the probe_basic style. What did you use to create the graphics and are the raw files (SVG?) available?

The buttons and widgets are all styled with QSS (Qt's flavor of CSS), so if you add a new buttonbit will be styled to match everything else. The images and icons I believe Lcvett renderd in solidworks, so they are only available as PNGs.