Examine source code of Master Legend

{
  "theme": {
    "images": {
      "theme_frame": "MLheader.JPG"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Master Legend",
  "manifest_version": 2,
  "description": "Master Legend, a Real Life SuperHero. and member of Team Justice."
}