I assume the RPi_Leaf.svg is just a png imported into INK.
To convert it to a svg path you go Path/Trace to Bitmap.
Press Update at each change to see what happens.
Select colors in Multi scans.
Turn off smooth.
Select the min number of scans that make it still look good. More scans look better, but someone told me more scans makes the file bigger, and big parts don’t get accepted into the FZ auto-update database. It’s probably too much with more than 1 scan, so do what you like because it works with any number of scans. 8-10 looks ok.
Select the orig imported image in XML editor and delete it.
Select the created path group and scale it until it’s correct.
I think the header is a proper svg with it’s connectors, so you have to delete all the other stuff like extra groups, paste it in the RPi_Leaf.svg, Edit/Select All and group it, name that group Breadboard, and Save as Plain svg.