Examine source code of Smithsonian Libraries

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    "images": {
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    },
    "colors": {
      "frame": "#a6a1a1",
      "tab_background_text": "#cfbd1f"
    }
  },
  "version": "2.0",
  "name": "Smithsonian Libraries",
  "manifest_version": 2,
  "description": "Smithsonian Institution Libraries.  The world's most comprehensive museum library system."
}