Examine source code of Erea Dictionary

{
  "author": "Joshias",
  "manifest_version": 2,
  "name": "Erea Dictionary",
  "version": "1.1.0",
  "description": "View definitions easily as you browse the web. Double-click any word to view its definition in a small pop-up bubble.",
  "icons": {
    "48": "icons/Erea-Dictionary-48.png",
    "64": "icons/Erea-Dictionary-64.png",
    "96": "icons/Erea-Dictionary-96.png",
    "128": "icons/Erea-Dictionary-128.png"
  },
  "browser_action": {
    "default_title": "Erea Dictionary",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/Erea-Dictionary-48.png",
      "64": "icons/Erea-Dictionary-64.png",
      "96": "icons/Erea-Dictionary-96.png",
      "128": "icons/Erea-Dictionary-128.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": false,
    "chrome_style": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "common/browser-polyfill.js",
        "content_scripts/dictionary.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "common/browser-polyfill.js",
      "background/background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "storage",
    "https://en.wiktionary.org/*",
    "https://fr.wiktionary.org/*",
    "https://de.wiktionary.org/*",
    "https://es.wiktionary.org/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@erea-dictionary.joshias",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}