OF, I read the instructions and it seemed the steady red and steady green were separated by flashing red during heat up, and orange after during reset. So if you can catch it when it's orange it might be less of a problem. I know little about colour blindness- is orange also an issue?
I sympathise though- it sucks being a minority. Perhaps not quite a stark an impairment, but I'm one of the global ~10% that are left handed can't use a tin opener, struggle with scissors, need custom guitars, banjos, gunstocks, special HMK curves, the list goes on. You should see the smudge of my hand on my handwriting... writing sure wasn't developed by a southpaw. But, the same as red and green, it's how the world has evolved. Doesn't mean it's not too late to start changing (well maybe it is in the world of navigation where red and green are used for a reason).
First, thanks for the compassion, it's a hard thing to understand for sure. Yes, if you concentrate on the LED it should work fine. But the nature of the machine says you're going to glace down to see if the device is red for not hot enough to use, or green for ready to hit. The orange part is OK with most color blindness (there are a bunch of kinds) but red/green is far and away the most common. As is colorblindness in general (about the same level as those left handed folks you cite, 12% give or take), ironically almost all male (seems the genes are for normal color vision, so women get two chances, guys get lack of it from their mothers).
Say, for instance have that green LEDs flash briefly off every second or so (wink), different from flashing (more like 50/50 duty cycle). The red LED on my charger actually winks like this, hard to even notice unless you look for it....which is the idea.
Yes, 'red right return' only works well for some. For those that don't follow, that's the convention you keep red sea markers on your right coming into port or going up river. Again it's backed up by careful color selection (LEDs are generally confusing colors due to the physics involved, the 'sea green' LED on HA being an exception for many) and shape on sea markers are used as well. But I'm not to be trusted for 'passing ships in the night'.
Also an excellent point the problem can be changed over time, but not if folks don't see it (sorry, but the pun was just sitting there doing noting....).
OF
