Examine source code of Markdown for Reddit

{
  "manifest_version": 3,
  "name": "Markdown for Reddit",
  "version": "1.0",
  "description": "Convert Reddit posts to Markdown text which you can download or copy.",
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "https://www.reddit.com/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "64": "assets/icon.png"
    }
  },
  "icons": {
    "16": "assets/icon.png",
    "32": "assets/icon.png",
    "48": "assets/icon.png",
    "128": "assets/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "markdownforreddit@gmail.com",
      "strict_min_version": "109.0"
    }
  }
}