Blue mosaic background

[mimmeli]

Above the Start button I can see a current table with a blue mosaic background and I find it so much better on the eyes. How do I get that?

[thoun]

In the user preferences, select dark background

[mimmeli]

In the user preferences, select dark background

I cannot find this anywhere in user preferences

[varietyCH]

It's below or beside the table, you may change it during the game.