Color Blindness and HP Prime keys color choice

[Rich]

Younger college student here, in reference to the post above, I have passed the calculator around at my university here in the New England area, and all 5 of us within my study group agreed that the color scheme for extended use is poor when compared to my 50G.

Also someone noted that the optimal angle to the view the screen is directly over it or holding it perpendicular to your view. As you move from this angle, the colors and contrast slightly get darker. I believe this is on most modern screens, but it was more pronounced than say, my cell phone.

I wish HP would release a new key set and mail it to all the owners, if it is replaceable in the field. If it is field replaceable, another option would be to use our school's 3D printers to make a new set, with etched labeling.