Skin your Google Chrome Beta by downloading the themes in the form of .CRX files aka Chrome Extensions.
Download & try the latest version of Google Chrome (BETA)
Download Themes from Google Chrome Theme Gallery.
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Image via WikipediaGoogle Chrome has weekly and monthly builds namely the Beta and Dev channel where users can get early access to features that they can test out and help with the bug fixes or the project itself.
I recently tested out the latest Dev channel and there are some very noteworthy features to explore and play with.