Support for coloring and naming queries

[FrankyBoy]

As #1962 was closed due to inactivity, and this issue should still be addressed, let's get this on the board again. Because this is not a readable graph:

(each of those peaks is generated by a different query ... in case that's not obvious ... which it isn't because we can't color them).

[russorat]

@FrankyBoy Thanks for re-opening this. We will take a look to see how difficult it would be to give each tab it's own color.