These four Screen Shots show a stage play using  views for actors, band and breaks.
The last shows a different play with actor photos from same iPad for channel identification.
Each channel has a thumbnail of input settings, EQ, and Comp/Gate action. 

Here are Touch Sensitive iPad Screens that work  for us.

These four Screen Shots show 32 color codes applied to mixer screen, mixer Inputs, stage boxes, and microphone cables.
Color code makes inputs easy to identify, particularly when changing out bands.

These four Screen Shots show channel overview,  inputs,  4 band Parametric Equalization, and Compressor/Gate.
Overview shows all active level meters, Inputs can set level going to each monitor mix