Hmmm … Maybe we should do some collaboration. I’m comfortable with the technical details of creating parts, and can do the line style diagrams for schematic and pcb. I can create functional breadboard parts, but am no good at making them (or icons) actually look good. See the recent post for Dragino LoRa Shield part creation for a sample. The graphics in that that look any good, I copied from someplace else. Or created from dimensions and straight numbers. I edit the svg files with a text editor, not using Inkscape, Illustrator, Corel, or any other graphics program. That way I get the pieces exactly where I want them based on coordinates.