Special visual feedback tool-bar actions

The new custom toolbar gives us great flexibility to create an easily accessible button for any action or custom action. The only thing lacking is the visual feedback that some of the default toolbar icons provide. Perhaps Reaper's developers or even the plugin developers could create actions that control the tool-bar icon's state based on some status. Example: an action that makes the icon turn on when a track or the master had a peak, click the icon to turn off all peaks when used with the clear all peaks action. Example: an action that makes the icon turn on when a track or the master had a solo, click the icon to turn off all solos when used with the unsolo all tracks action. Example: an action that makes the icon turn on when a track or the master had a mute, click the icon to turn off all mutes when used with the unmute all tracks action.

Yes, known. But understandably that's a much bigger ask than just firing an action when a button is pressed, which itself gives us a huge functionality boost. Maybe we should just enjoy that for a while, eh? ;)

I'd like it if that toolbar could float.