Examine source code of The Stream

{
  "name": "The Stream",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "abstrakt70.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(184, 184, 184, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 41, 55, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(134, 173, 189, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9f5d8b5d-2abf-41a2-ad99-ceae208d836f}"
    }
  }
}