Examine source code of ThickGreenLeaves

{
  "name": "ThickGreenLeaves",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "21013854_10155846704124903_4016478484156445848_o.jpg"
    },
    "colors": {
      "toolbar": "rgba(209, 209, 209, 1)",
      "toolbar_field": "rgba(232, 232, 232, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "frame": "rgba(133, 133, 133, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(0, 0, 0, 1)"
    }
  }
}