6. The computer of claim 5 , further comprising a touch screen, wherein the processor is further configured to receive input selecting one of the plurality of theme templates wherein the user's finger touches a thumbnail image on the touch screen corresponding to the thumbnail image, and apply a corresponding theme of the selected theme template to the slide.
6. The computer of claim 5 , further comprising a touch screen, wherein the processor is further configured to receive input selecting one of the plurality of theme templates wherein the user's finger touches a thumbnail image on the touch screen corresponding to the thumbnail image, and apply a corresponding theme of the selected theme template to the slide. 7. The computer of claim 6 , wherein the processor is further configured to: receive further input selecting a theme variation template displayed in the theme gallery; and apply another corresponding theme of the selected theme variation template to the slide.