Examine source code of Flaming Mockingjay

{
  "theme": {
    "images": {
      "theme_frame": "hungergamespersonatop.jpg"
    },
    "colors": {
      "frame": "#737373",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Flaming Mockingjay",
  "manifest_version": 2,
  "description": "Ignite your Firefox with the Mockingjay pin worn by the Girl on Fire in the Hunger Games. May the odds be ever in your favor!\nNot tabs on top friendly -- look for the alternate version."
}