It would be cool if you can simply add Bitcoin Gold to this so we can keep track of the price. I have tried to add Bitcoin Gold myself, filled the template up, problem is that the BTG ticket is already taken by some other coin so I can't add it, it gives an error. You should allow repeating tokens since some newer coins use the same tokens as older coins but these older coins are pretty irrelevant by now.
I thinks it is already added partially, if you use the BTG (Bitgem), you get the wrong icon and name but correct rate.