Are the ARR UI graphics placeholders or the final version?

[Majidah]

I've been wondering this. Could we get some confirmation?
It looks really amateur and doesn't seem stylized like the game. I always thought it was just a placeholder for the real UI but since they are releasing so many screenshots of it so publicly I'm starting to think it isn't just a placeholder.

Usability wise, it seems pretty good though.

So even if its the final design, I also wonder, will we be able to customize their graphics through the player made plugins yoshi spoke so much about?