Ability to customize Counter look

[cezudas]

Hi, I was wondering if there is any means to eachieve a small degree of customization for the counters, like the ability to specify the font color

I'm a new Redash user and I'm missing most of the context. I think the fact that Counter widget doesn't support HTML has been mentioned a few times by the maintainers, for example here.
I'd be happy to contribute with a PR, I just wanted to hear out what our maintainers think about it.