Display Font Awesome Icon in DMX-text or DMX-HTML

I would like to have an icon in the dmx-text text, now I am assuming that possibly I would need to use dmx-html but trying it I just come up with it not showing

Ultimately I would like to achieve on value x=0 to show a cross and x=1 show a tick.

so it would be X {{name}}

Could someone give me the best way to do this please.