Try one of these popular downloadable themes. You can decorate your desktop with beautiful high-def images of tropical fish, exotic landscapes, and adorable pets - or just make your PC look like a Commodore 64.
9. Stars and stripes
If you're fond of the US, this is the theme for you. It goes beyond the usual flag-waving imagery, offering some very nice artistic variations on the Stars and Stripes.
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10. Hong Kong City Nights HD theme
Does your desktop seem kind of blah? Jazz it up with this dazzling image of Hong Kong at night.
See also: 10 must-have downloads for Windows 7