Examine source code of Blue Beetle

{
  "theme": {
    "images": {
      "theme_frame": "pers2.jpg"
    },
    "colors": {
      "frame": "#a0a0a0",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Blue Beetle",
  "manifest_version": 2,
  "description": "A simple design based on Blue Beetle II, Ted Kord."
}