Maybe I'm the wrong person to open this topic, but I think it should really have its place on the forums.
I don't have a clue yet how the new ui commands from tesseract work, but it looks like an awesome new feature. And it is definitely a ton of work for quin to recreate all game menus from scratch.
It is probably too early for the community to help with this, but as a starting point, I have put a list of the new commands on the wiki.
Maybe someone can share a link to some documentation from the tesseract community, or we could collect some more instructions in usage.cfg (edit --> pull request).
Who knows what cool new stuff will be possible with this... maybe we will even get a menu editor with built-in previews.