I tried to add a font awesome icon in the tags and now if i want to delete it it comes back

How can i delete it ?

I am looking for a plugin to make the color you set for a group the color for the name of someone in it,

For example

The color for the group administrators is Blue but my name is white , i am searching for a plugin that can make the color of the group the same color of the user name

This is a custom design ?

Mine looks like this:

Does somebody know what is the name of the tags plugin from the nodebb.org forums ?