Sorry, I'm just so familiar with how everything works in Color Toolbar.
Let me know if there's details missing that need to be added to the website, video tutorial or documentation to make this more obvious.
Just as a feature request for the Color Toolbar. I like to see an additional function to conform only selected tracks. I know this is possible for selected events, but even not for selected tracks. Also, I like to see a mouse over functionality which shows the associated color groups when holding the mouse cursor over the color slots inside the open Color Toolbar.