Each theme release seems to be better than the earlier! While I thought the Fresh Fruit theme was really cool, this new Tropical Fish theme release by Microsoft looks awesome! Love tropical fish and underwater life? This Windows 7 theme is bound to interest you.
Swimming in schools and captured in hypnotically vivid close-ups, darting through coral reefs and backlit by an ocean-filtered sun, the fish in this free theme for Windows 7 bring a fantastic world of tropical colors to your desktop.
The theme is a 8.8 MB download and contains 9 high-resolution wallpapers.
You can download it from Microsoft here.
Go here if you want to learn how to preview wallpapers, before downloading Windows 7 theme packs from Microsoft.
You may be aware that you can now also submit your art, photographs and creations to Windows Personalization Gallery.
Like all themepacks, this one too can be used only on Windows 7 Ultimate, Home Premium, Professional, Enterprise editions, but you could extract the wallpapers if you like them and use them on your desktop. Go here if you want to learn how to make a Windows 7 themepack.