Examine source code of Yola corporate

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_yola_2.png"
    },
    "colors": {
      "frame": "#cccccc",
      "tab_background_text": "#333333"
    }
  },
  "version": "2.0",
  "name": "Yola corporate",
  "manifest_version": 2,
  "description": "Suit up your browser with this official Yola Inc. persona."
}