Examine source code of Wikidata

{
  "manifest_version": 2,
  "name": "Wikidata",
  "version": "0.721",
  "default_locale": "en",
  "description": "Display information from wikidata.",
  "icons": {
    "48": "icons/wikidata.svg",
    "96": "icons/wikidata.svg",
    "128": "icons/wikidata.svg"
  },
  "options_ui": {
    "page": "options/index.html",
    "browser_style": true
  },
  "browser_action": {
    "default_icon": "icons/wikidata.svg",
    "default_title": "Wikibase for Web"
  },
  "sidebar_action": {
    "default_icon": "icons/wikibase.svg",
    "default_title": "Wikibase view",
    "default_panel": "sidebar/index.html",
    "open_at_install": true
  },
  "permissions": [
    "<all_urls>",
    "scripting",
    "search",
    "storage",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "contextMenus"
  ],
  "background": {
    "page": "background/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "js": [
        "content/url-reference.js",
        "content/movementObserver.js",
        "content/selection-observer.js",
        "content/hash-change-observer.js",
        "content/element-highlighter.js"
      ]
    },
    {
      "matches": [
        "https://www.openstreetmap.org/export/embed.html*"
      ],
      "run_at": "document_end",
      "js": [
        "content/openstreetmap-compact.js"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "/content/element-highlighter.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8b348118-df28-4d6b-aa90-4e90049c7f19}",
      "strict_min_version": "102.0"
    }
  },
  "commands": {
    "toggle-sidebar": {
      "suggested_key": {
        "default": "Ctrl+Shift+D",
        "mac": "MacCtrl+Shift+D"
      },
      "description": "Toggle sidebar"
    }
  },
  "page_action": {
    "default_icon": "icons/wikidata-edit.svg",
    "default_title": "Wikibase Edit Queue"
  }
}