Ajouter une classe CSS contenant le groupe de balises

[loginerror (Maciej Kuźmicz)]

I feel like bumping this topic

Our basic use-case would be pretty much the same as mention here:

@jomaxro

color tags, but not need to modify their CSS every time a new tag is added

But we would also like to be able to do some widget magic based on a variable that returns topic tags and their corresponding tag groups.