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I really hate the "fashion" in the last few years to have really bright "power indicators" and especially blue LEDs for things that don't need blue.
The amber, yellow and green are pleasant if not too bright. Red for fault and Green for OK is a bad combo for the most common colour "blindness". Unfortunate for Port and Starboard. Would yellow for OK and blue for fault be better?
Red was the first visible LED (late 1960s? though modern LEDs invented in 1962) and then there was green in the 1970s. Now there are many native colours without a phosphor.
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