Theme problem

so i was exploring LG a little more and at the bottom it said "themes" there was a couple to choose from and i chose Iphone theme. I was just curious. Now, i still got the iphone theme and i dont know how to change it back. anyone know how i could change it back to the regular theme

forum.logicalgamers.com/forum.php?styleid=7

I was messing around with the themes, I like Illuminate, it just looks cool xD