Wiring layouts with curvy lines - what software?

[jeffbro]

In recent years I've started seeing lots of wiring layouts drawn with curved lines like the example below. The twisted pairs are a nice touch! What are some of the software programs that make these drawings?

 

[rock soderstrom]

https://diy-fever.com/software/diylc/

 

[volker]

I do this kind of thing in Inkscape.