Summary: Use a colour (eg: blue) in the icon if the printer is waiting for the bed or nozzle to cool down.
Detail:
Typically after switching from a hot print material (eg: PETG) to a cooler one (eg: PLA) the printer will pause waiting for the heat bed to cool down from 70ºC. The printer shows no indication that this is what it’s doing.
In addition to showing red-orange when the printer is waiting for the bed or nozzle to heat up, it would be nice if it showed blue if it’s waiting for a cool-down.