This is a custom made theme by me. I was just testing out Horizon's Theme Creator, Its pretty good even shows you what it will look like once on Xbox.<br />
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Hellgate: London is a Windows PC game never played it myself but saw HD Wallpapers that looked cool so I used them. Enjoy and have a look, easy enough to install just put in same place on HDD/USB as other themes and it will work no need to rehash or resign it.