Examine source code of Nova Fox

{
  "theme": {
    "images": {
      "theme_frame": "Gray_earth_fox1.jpg"
    },
    "colors": {
      "frame": "#ffea00",
      "tab_background_text": "#ff5500"
    }
  },
  "version": "2.0",
  "name": "Nova Fox",
  "manifest_version": 2,
  "description": "Firefox with a nova effect, gradient colored with both the globe and earth in seprate colors."
}