Completion color, Rainbow, and Steady Color

So we Have Idle Color, Printing Color, Error Color, where is completed color? I want it to go steady blue or green when done.

I said steady like steady on not the glow stuff.

also why does it glow flash? why is there no solid mode?
Can we get a rainbow color option where each LED is different show all colors of the devices from left to right?(LED 1 is Red, LED 2 is Orange and so on)

Can you make it so the color chases the last color?(LED 2 is on, 3 goes on 2 goes off and so on)

Start by locating the existing idle, printing, and error color handling and the LED animation logic. Clarify whether completion, solid, rainbow, and chase are separate modes and how each should be selected. Done should mean the agreed modes produce the specified LED behavior without unwanted glow or flashing.

Written by the indexing model from the issue text.