Examine source code of YACY it

{
  "manifest_version": 2,
  "name": "YACY it",
  "version": "1.6",
  "description": "Adds the current webpage to the local YACY index.",
  "icons": {
    "128": "icons/index.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "menus"
  ],
  "page_action": {
    "browser_style": true,
    "default_icon": "icons/web-plus.svg",
    "default_title": "YaCy it",
    "default_popup": "popup/choose_depth.html",
    "show_matches": [
      "<all_urls>"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "background": {
    "scripts": [
      "index.js",
      "background-script.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{08928357-d084-4e77-b55a-65de2f382f59}"
    }
  }
}