Examine source code of LANDSCAPE_2011

{
  "theme": {
    "images": {
      "theme_frame": "LANDSCAPE_2011.jpg"
    },
    "colors": {
      "frame": "#0865c2",
      "tab_background_text": "#61ff89"
    }
  },
  "version": "2.0",
  "name": "LANDSCAPE_2011",
  "manifest_version": 2,
  "description": "LANDSCAPE_2011"
}