Examine source code of Proteus Virtual

{
  "theme": {
    "images": {
      "theme_frame": "Proteus-Virtual-Header.jpg"
    },
    "colors": {
      "frame": "#bdbdbd",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Proteus Virtual",
  "manifest_version": 2,
  "description": "Proteus Virtual Ltd. is a digital design agency that integrates intelligent graphic design and effective branding communications across a wide range of media."
}