Making custom PCB shapes for Fritzing is a difficult task. If there is any ongoing development on Fritzing, I suggest making this task MUCH easier. I would like to see the ability to import a .svg shape and have Fritzing automatically convert it to a PCB ready to use. If changes are necessary, then just redraw the .svg and import it again.
Are there ongoing updates to Fritzing?
Is there a better place to make this request?
Is there place where we can see what is being worked on for enhancements?