Hey,
So I thought a new idea to integrate could be this plugin here

https://www.spigotmc.org/resources/1-8-vault-balance-formatter.9757/

Terrobility@e131aea
Terrobility@8130fb0

I'm not going to pull request it, but this is what would need to be done. Also, a config option would be needed (but I don't have the time to add one in).

I believe this was implemented a while ago.