Examine source code of R2-D2 Space

{
  "theme": {
    "images": {
      "theme_frame": "R2FF.jpg"
    },
    "colors": {
      "frame": "#949494",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "R2-D2 Space",
  "manifest_version": 2,
  "description": "I didn't find any decent R2-D2 ones on here so I put a little effort in and made one!  I recommend using this with no extra toolbars open on browser or you'll get the ugly black cutoff where I got lazy (right-click top right of browser and uncheck everything but Menu, Navigation, and/or Bookmarks)."
}