find the "seven" differences

[René Franquinet]

Okay, this problem concerns keys and colours. Every specialized HMI person could have told you what was/is wrong with the colours used till now. But more important is the not declining list of bugs and complaints about the HP Prime. And these affect the raison d'etre of this device: a programmable calculator.
If someone out there would start a crowd funding for the creation of a real WP34S (not an HP30B in another form with sticked key overlays), I would be the first to contribute to it.