Examine source code of Satzgenau

{
  "manifest_version": 2,
  "name": "Satzgenau",
  "description": "Juristische Verweiserkennung im Browser",
  "version": "1.0.1",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "author": "Fabian Thomas",
  "web_accessible_resources": [
    "assets/overlay-ui.css",
    "assets/tailwind.css",
    "Inter-Variable.woff2",
    "SourceSerif4-Italic-Variable.woff2",
    "SourceSerif4-Variable.woff2",
    "icons/128.png"
  ],
  "permissions": [
    "activeTab",
    "storage",
    "*://satzgenau.de/*",
    "*://static.satzgenau.de/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Satzgenau / Einstellungen",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "all_frames": true,
      "css": [
        "content-scripts/content.css"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{156e550d-6f70-49f8-8f57-fe643a8d2e71}"
    }
  }
}