Show and color the "Show/Hide Automation" dropdown arrow when automation exists

On tracks shown in the track view, it would be handy to show the automation tracks dropdown arrow (normally hidden until hovering the mouse over the area) always when automation exists on a track, and color it other than the dull gray (or whatever). That way it would be easy to see what tracks actually have automation on them. I am referring to mix automation type stuff, not MIDI CC automation.