To-do:

Support for more connector types

Inline connectors (IDC)
- Possibly join two logical wires into one physical wire, add up length for BOM creation
- Designators like W1_1, W1_2 or similar to group them?

Support for more wire types

Coax cables
- Graphical representation
Twisted pairs
- Logical representation
- Graphical representation
Ribbon cables
- Folds
- Splits
- Orientation of IDC connectors

Support for more links/connections

Cable splicing
- as pseudo-connector?
Heatshrink / sheathing

Visualization

Parse and render double-colored, striped cables ('RDBU' etc)
Display picture of connector underneath (including pin 1 location)

Export

Export to PDF with frame, title block, ...

Other

Imrpove tutorial texts
Create syntax reference / cheat sheet
Set global parameters (show_pins, ...) and allow override on per-item basis
Allow custom GraphViz code before/after WireViz-generated code
Make "unit tests" for different features/situations
- Missing parameters
- Connection formats
  - single wire 1
  - multiple wires [1,2,3]
  - wire ranges [1-10]
- Loops
- ...