Examine source code of Codec Phrase Replacer

{
  "manifest_version": 2,
  "name": "Codec Phrase Replacer",
  "version": "1.0",
  "description": "A must-have for Metal Gear Solid fans! This extension transforms specific phrases into iconic lines from the Metal Gear Solid series, keeping your browsing experience full of nostalgia and tactical espionage humor",
  "icons": {
    "32": "icons/text-icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "true-patriot.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{faa6c2c0-8ca4-4436-8c53-e4ca8591ee3b}"
    }
  }
}