Examine source code of Dictionary Glance

{
  "manifest_version": 2,
  "name": "Dictionary Lookup",
  "version": "5.0",
  "description": "Right-click or shortcut to look up English word definitions in-page, with lookup history.",
  "homepage_url": "https://github.com/kingharlaus24/dictionary-lookup",
  "repository": {
    "type": "git",
    "url": "https://github.com/kingharlaus24/dictionary-lookup.git"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "https://api.dictionaryapi.dev/*",
    "https://en.wikipedia.org/*"
  ],
  "icons": {
    "48": "icons/dict-48.png",
    "128": "icons/dict-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icons/dict-48.png",
    "default_title": "Dictionary Lookup",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "commands": {
    "lookup": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y"
      },
      "description": "Lookup selected word in dictionary"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{781b8df3-8689-4e5f-93ab-437ec93c7ff9}"
    }
  }
}