Examine source code of Comical Nature

{
  "theme": {
    "images": {
      "theme_frame": "comicalnature.png"
    },
    "colors": {
      "frame": "#1100ff",
      "tab_background_text": "#1100ff"
    }
  },
  "version": "2.0",
  "name": "Comical Nature",
  "manifest_version": 2,
  "description": "A plain, comical nature persona that is fit for those eco-friendly people who would like to keep their browser simple, comical and nature-themed."
}