I get the png file of the board for the Sound Level Meter.fzp, but that isn’t sufficient for a breadboard svg file. To make a part you need to create an svg file that reflects this with a svg editor (I use Inkscape.) In theory you can embed the png in an svg, but it has never worked very well, and Inkscape can import and try and convert the png to a svg but that doesn’t work all that well either (I believe there is a section on doing this in Old_Grey’s video tutorial series available here):
but neither I nor he have ever had very good luck with it. There appears to be a pdf layout file on github here that would be a good start to making a part:
as it has both the layout and the sizes. If you like I will make a part when I finish one I am doing for someone else.
Peter