Examine source code of nICE and cold

{
  "name": "nICE and cold",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "0a2a46.jpg"
    },
    "colors": {
      "toolbar": "rgba(34, 62, 87, 1)",
      "toolbar_field": "rgba(25, 85, 138, 1)",
      "toolbar_field_text": "rgba(186, 223, 255, 1)",
      "frame": "rgba(10, 42, 70, 1)",
      "tab_background_text": "rgba(186, 223, 255, 1)",
      "bookmark_text": "rgba(186, 223, 255, 1)"
    }
  }
}