What? There's no Contrast Control?

I was sure there was a hidden control (Hold pedal in left hand, stand on right foot, touch your nose with your elbow while pressing button 1,2 5, and six for 2.37 seconds) for the display on the MIDI Maestro.

Was I wrong? This thing is not the most readable device I’ve ever used…

…help??

Not sure where you got the impression, but not to my knowledge

I would also say making this possible is not likely, given it is achievable somehow