Examine source code of otro

{
  "name": "dos",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "26869.png"
    },
    "colors": {
      "frame": "rgba(227, 227, 227, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(0, 19, 46, 1)",
      "bookmark_text": "rgba(153, 153, 153, 1)",
      "toolbar_field": "rgba(148, 148, 148, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(3, 3, 3, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0a28d7ca-bfa3-4560-9ef4-a922472000d0}"
    }
  }
}