[Freire_Herval]

Just look at it and use your logic. It's simply very basic geometry combined with a specific font. That's it. There's decorative stuff like the curved spine but the layout is very simple. The buttons are rectangular there's nothing super complex here that is very far from a basic flat design. I would say lcars is a precursor to flat design.

Don't let your thinking be flat where you can only come to conclusions that are data driven. Use your intuition and project the creative consequences yourself. LCARS is owned by paramount so it can't really be used as a UI theme anywhere else without permission.

But what if it could? Just imagine it, it's not that hard. Hacker news can be themed into lcars with largely zero change to the XY location of every element. Picture it with your minds eye.

edit: I ended up finding an example: https://www.thelcars.com/menu/. But everyone should be able to come to the same conclusion without data. It's so trivial that illegal fan made examples do exist.