Examine source code of Orange

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Orange",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(255, 108, 47)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(230, 69, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(230, 69, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 108, 47)",
      "popup": "rgb(179, 54, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 108, 47)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2c8e6475-79a4-4efb-8581-f62393921702}"
    }
  }
}