[freehunter]

It looks like a small handful of semi-transparent shapes (they look like leaves to me) with different colors that are overlayed on each other. Since they're different semi-transparent colors, the colors blend to form a new shade where they have overlapped. Repeat this a few times with logic that rotates the leaf around the axis a little below the bottom center of the screen, and there you have it.

[derefr]

Yep. It's just a more gradated version of the iOS Photos app icon. It's pretty easy to see what makes the simpler version look the way it does, when you blow it up[1]: there are just eight translucent roundrects with gradients, and everything else emerges from how they overlap.

(And from the fact that the gradients form a complete hue continuum. Look at the small triangles in the middle to see the destination colors, and see how they match the source colors of their neighbours.)

[1] http://www.icreatemagazine.com/wp-content/uploads/2013/08/Pr...