Examine source code of F and i

{
  "theme": {
    "images": {
      "theme_frame": "Fireandice.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "F and i",
  "manifest_version": 2,
  "description": "fire and ice"
}