Examine source code of Drumpfinator+

{
  "name": "Drumpfinator+",
  "version": "1.1.9resigned1",
  "manifest_version": 2,
  "description": "Tired of seeing Donald Trump's name everywhere on the internet? Now you don't have to!",
  "homepage_url": "https://github.com/mark-monteiro/drumpfinator",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "src/inject/inject.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{881ab061-6a82-4def-aaf6-ec7f55b47327}"
    }
  }
}