This seems like a really cool idea! Maybe it could also show the connections between WIFI (with each channel having a different colored line)?
I have a prototype concept: https://github.com/Bowserinator/TPT-Ultimata-Mod/blob/development/Wiki/tools/CNFG.md
Debug mode already shows WIFI connections, but with a white line. Press D to turn debug mode on/off.
I know, it's just that it would be nice if ALL connections were shown at once (with each connecting being a line with a different color).
Same with PRTI/PRTO.
I actually implemented exactly the first half of that suggestion in the subframe mod a very long time ago :P
https://powdertoy.co.uk/Discussions/Thread/View.html?Thread=21251&PageNum=0#Message=295381
And have a pull request standing for it:
https://github.com/The-Powder-Toy/The-Powder-Toy/pull/589
Probably not going to be merged though, since it isn't new-user friendly at all. Was intending to implement the GUI config mode (which would've helped) but never got around to it.