It is so hard to change the background color on a tablet but on a computer it's so easy I can't find the button to change the background color I can't let my presention look blank with some of my slides I can't do any of the themes because it's so different from the information not only that I have this at school and don't have problems on a computer I have problems on a tablet it's so frustrating and I am done it's tirreble app or you could update it so the background color has its own button.!