Build video APP with JITSI and modify completely the UI

Hello all, first of all I want to congratulate the entire community for developing this amazing app.

Also, I’m sorry if this has been asked before but I couldn’t find it.
I want to build a custom web mobile video app. Can I use the API to build something from scratch and visually complete different from from the JITSI meet or I need always to use the same look and feel?

I know, for ex. tokbox alows us to use their API to build something like that, but I’m not sure if we can achieve the same with JITSI API.