Examine source code of Elements Persona

{
  "theme": {
    "images": {
      "theme_frame": "firefox_logo.jpg"
    },
    "colors": {
      "frame": "#d40707",
      "tab_background_text": "#0526ff"
    }
  },
  "version": "2.0",
  "name": "Elements Persona",
  "manifest_version": 2,
  "description": "Made for Oak Hills Church of Eagan MN"
}