My first post - I hope i am doing things correctly.

Is it possible to show the drive map legend pemanently?

Or could this be added as a feature ?

As far as I know that can't be done at the moment, but that's not a bad suggestion. I would support such an option. It would be helpful particularly for newer users that are getting used to the application. Might aid in adoption...

I join the given wish! Very much there is no legend display at defragment!