There should be a new standard for colors, rgbal. Where you can specify red, green, blue, alpha, and luminosity values. The luminosity (I’m probably mis-using this word here, but b for brightness was taken) would control the brightness of a particular pixel on the screen (display brightness, not hsb brightness), which right now seems to be controlled in an all-or-nothing way often using special keys on your keyboard. Can you imagine how cool (/inaccessible!) things could get?