Samsung Galaxy S features icon backdrops in Launcher, any way to specify it?

I haven't seen this mentioned anywhere. Usually Android app icons feature a transparent background, unlike the squared status quo of th开发者_StackOverflowe iOS family.

However, the Samsung Galaxy S's launcher sets different icon backdrops for my various apps. On my own app, he attributed a green sunshine, and I see that pattern on some other apps I have installed. The default apps also have various backdrops.

Can I specify what backdrop to show for my app?

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Galaxy S (as other models by same manufacturer) uses a different launcher. This is not the default one released with Android AOSP featuring transparent icon background. This launcher automatically (part of TouchWiz UI) adds a square background to every icon. There's no way you can do the same without changing it on your phone. If interested you can download it here http://www.mediafire.com/?n1gtg0mgu2w