Examine source code of Hawk and Sparrow

{
  "theme": {
    "images": {
      "theme_frame": "birds.png"
    },
    "colors": {
      "frame": "#65cce0",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Hawk and Sparrow",
  "manifest_version": 2,
  "description": "A hawk and sparrow that were photographed out my window at home"
}