Divine Fiat (http://www.divinefiat.com) has released Keynote Air,
their latest theme set for Apple’s Keynote presentation software.
Keynote Air consists of two themes, Lightly Serious and Seriously

Each theme features four slides of extras. Resizable media
placeholders predefined in the 1:1, 3:1 and 16:9 aspect ratios along
with custom shadow elements that allow you to create your own master
slide layouts. A video tutorial is also included which shows you how
to achieve several of the effects seen in the sample presentation.

The individual themes can be purchased for US$26 each. The Keynote
Air Theme Set can be purchased for $46.80.