Examine source code of AddToAny: Share Anywhere

{
  "name": "AddToAny: Share Anywhere",
  "short_name": "AddToAny",
  "version": "3.5.2",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "{35d49e56-0142-4a7b-82a8-6ace7d28ff92}",
      "strict_min_version": "112.0"
    }
  },
  "description": "Share to Facebook, Mastodon, email, and any other sharing or saving service quickly and easily with one share button.",
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_icon": {
      "19": "images/addtoany_19.png",
      "38": "images/addtoany_38.png"
    },
    "default_title": "AddToAny",
    "default_popup": "popup.html"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "MacCtrl+Shift+S"
      },
      "description": "Open AddToAny to share the current page"
    }
  },
  "icons": {
    "16": "images/addtoany_16.png",
    "32": "images/addtoany_32.png",
    "48": "images/addtoany_48.png",
    "128": "images/addtoany_128.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "scripting",
    "storage"
  ]
}