Examine source code of FF&_CRYSIS_3_beta

{
  "theme": {
    "images": {
      "theme_frame": "CRYSIS_3_beta_persona.jpg"
    },
    "colors": {
      "frame": "#c4ccbe",
      "tab_background_text": "#ffc629"
    }
  },
  "version": "2.0",
  "name": "FF&_CRYSIS_3_beta",
  "manifest_version": 2,
  "description": "FIREFOX_MEETS_CRYSIS_3_beta"
}