Examine source code of Future is Open Source

{
  "theme": {
    "images": {
      "theme_frame": "opensource.jpg"
    },
    "colors": {
      "frame": "#167e85",
      "tab_background_text": "#0a0000"
    }
  },
  "version": "2.0",
  "name": "Future is Open Source",
  "manifest_version": 2,
  "description": "The future should be free and fair.. And the future is Open..."
}