I find myself definitely agreeing with the implementation of this suggestion.
For some of the prices of the tags, I think it would be more than fair that players have the option of changing the color.
Additionally, making the color customizable means that players would perhaps be more interested in purchasing it, which may increase sales in "Party Points".
☆Side note: Obviously this is not the purpose of it, however, I think it would be great that both the network and players could benefit from it, too!
It also gives players a variety of colors, which gives them the option to express themselves.
I do not see any negatives that would come along with this.
It's a small adjustment yet we can all gain a lot of benefits out of it! +1