I can create and use tokens; however, I cannot adjust the border or background.
Also, when I have a Floor set as a Texture (natural subterrian in this instance) magnified to 300%, then set the Fog of War to the same, the map "blanks out" in the editor view. Sometimes a combination between refreshing the browser, saving the campaign view, leaving it and coming back, or dragging and moving the map works. Typically it seems to take 3-4 of some combination of those to get it back.
Unrelated: "subterrian" looks to be a spelling error, but I doubt that's the problem lol; I think the creator was going for "subterranean"?