Examine source code of Red 3D Machine

{
  "theme": {
    "images": {
      "theme_frame": "FireFoxHeader2.jpg"
    },
    "colors": {
      "frame": "#9e9e9e",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Red 3D Machine",
  "manifest_version": 2,
  "description": "A RED 3D Machine"
}