Got a good one for you... I, along with 12% of all males have some degree of color blindness. Mine is generically called red-green color deficiency: the most common. Here is an example... When upgrading code on a P3, the LED indicator shows either RED or GREEN depending on the success of the action. In my case, such a small light is very hard to tell if it is RED or GREEN. I think I know which color is showing but I seriously have to ask my wife to validate. What I wish DJI would do is to do variate between red/green and maybe BLUE and GREEN. Or, they could flash sequences of one flash for 'good' and three flashes for 'bad'. I know this seems trivial to most of you but this might prevent 12% of us from a dangerous situation. The FAA takes this seriously in that I had to prove I could differentiate signal light colors to the airport tower during my private pilot night check ride (and no, it's not between red and green). Thanks, this is a great forum!