changeing the graphic

Hi
I wanted to ask why don't any body change the graphic of the game ?
It has 2 different ghraphics and i don't see any different between them !

at first I wanted to change it alone , then I thought to take a help from here !

Is any body volunteer to help ?
(I have diploma quiz till 20 days, and I'll be free after that)

There are different graphics settings, and also graphics themes, but only for paid players.

There are paid players? I would like to get paid for playing as well!