The PS2 got it right-- its power button was a red/green bicolor LED (red on stan...

		JonathonW on April 2, 2021 \| parent \| context \| favorite \| on: Isamu Akasaki, inventor of first efficient blue LE... The PS2 got it right-- its power button was a red/green bicolor LED (red on standby; green when powered on). The blue LED was on the eject button, and was only lit while the console was powered on (and a disc was loaded, IIRC).