Examine source code of RG Active

{
  "theme": {
    "images": {
      "theme_frame": "FirFoxbanner.jpg"
    },
    "colors": {
      "frame": "#0a0a0a",
      "tab_background_text": "#0a0a0a"
    }
  },
  "version": "2.0",
  "name": "RG Active",
  "manifest_version": 2,
  "description": "RG Active are a Specialist Sports Coaching, training and Events Company that offers specialist coaching in specialist sports at non-specialist prices"
}