Bundled themes: new screenshots at 880x660 to maximize theme goodness in the new theme viewer design. See #26159.
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Visual refinements to the About page and screenshots. See #26387.
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I believe we're consistent about capitalizing Open Source elsewhere. See #26387.
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git-svn-id: http://core.svn.wordpress.org/trunk@26639 1a063a9b-81f0-0310-95a4-ce76da25c4cd