Examine source code of Hebrew Reddit RTL Fix

{
  "manifest_version": 3,
  "name": "Hebrew Reddit RTL Fix",
  "version": "1.2",
  "description": "Automatically set RTL for paragraphs containing Hebrew characters on Reddit.",
  "author": "Yoav TC",
  "browser_specific_settings": {
    "gecko": {
      "id": "hebrew-rtl-fix@yoavtc.com"
    }
  },
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "https://*.reddit.com/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.reddit.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "action": {
    "default_popup": "index.html",
    "default_icon": "icons/icon48.png"
  }
}