The blue light were brighter - they have a mechanism different from the old LEDs that is much more efficient. I guess the designers just dropped in the blue led

The blue light were brighter - they have a mechanism different from the old LEDs that is much more efficient. I guess the designers just dropped in the blue leds, and voilá, terrible bright lights. The other colors later followed suit - the brightness you now get with a few mA is amazing when you know the old LEDs.