Examine source code of The_Amazing_Map

{
  "theme": {
    "images": {
      "theme_frame": "Header.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "The_Amazing_Map",
  "manifest_version": 2,
  "description": "Because there were no personas that contained maps, I decided to make one for myself and the other map lovers."
}