Examine source code of tree frog stare

{
  "theme": {
    "images": {
      "theme_frame": "frog.jpg"
    },
    "colors": {
      "frame": "#21a81e",
      "tab_background_text": "#bd1b1b"
    }
  },
  "version": "2.0",
  "name": "tree frog stare",
  "manifest_version": 2,
  "description": "tree froggy"
}