Examine source code of three frogs in a tree

{
  "theme": {
    "images": {
      "theme_frame": "3frogPic.png"
    },
    "colors": {
      "frame": "#bd2020",
      "tab_background_text": "#d9c832"
    }
  },
  "version": "2.0",
  "name": "three frogs in a tree",
  "manifest_version": 2,
  "description": "3 frogs in a tree"
}