I was focused on pyronites because I saw how their are different flame colours and wondered if they could explore different ones, like let’s say Ben is threw into a fireworks factory, at first he’s careful because he doesn’t want to set anything off, then he sees different elements which can allow him to use different flame colours, or maybe he just gets blue flames with age, that would be cool, I mean imagine new version from the comics with blue flames.
But on the cultural part, I think pyronites could maybe use a mix of volcanic ash and elements to make pastes which they can apply to their stones like makeup, and the different elements would slowly be used over the day, giving them different flame colours, the equivalent of dying your hair, it could be very cool for them to have talks about that.
Also(small tangent) I’ve always wondered if their has been any talk about different alien cultures outside of sparse examples, like for example, small things that we wouldn’t think about, like how Tetrax has a beard in 23’s universe, which either implies he choose to grow it himself or somehow it just happens, maybe during certain periods of their life they have excess crystal growth, like puberty, the reason could be for protection but since they are civilised now its less than useful.