Examine source code of red dragons

{
  "theme": {
    "images": {
      "theme_frame": "ffKopie.jpg"
    },
    "colors": {
      "frame": "#b00202",
      "tab_background_text": "#bf0000"
    }
  },
  "version": "2.0",
  "name": "red dragons",
  "manifest_version": 2,
  "description": "lala"
}