Object Desktop do come with some desktop customization applications such as Windowblinds, Icon Packager, Deskscapes, WindowFX, Start10/Start8. Most of the theme can be download from WinCustomize.com.
More information on Object Desktop can be found here. : https://www.stardock.com/products/odnt/
And for themes you can check out WinCustomize.com : https://www.wincustomize.com/
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