Color Blindness and HP Prime keys color choice

[dan_h]

Maybe someone can devise a hot key program that will show the keys -- and "sub key" inscriptions on the screen, so that a user could see which key to use and immediately return to the whatever task they were doing. I have the 50G, have had the Prime since Feb. 1, and so far really like it, but sometimes I have to tilt the calculator to read the the alternate choices on a key.