Examine source code of Simple Profanity Blocker

{
  "manifest_version": 2,
  "name": "Simple Profanity Blocker",
  "version": "1.1.1",
  "description": "Filters profanity and foul language from web pages in real-time. Privacy-first — all processing stays local.",
  "author": "Simple Profanity Blocker Contributors",
  "browser_specific_settings": {
    "gecko": {
      "id": "simple-profanity-blocker@example.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs"
  ],
  "background": {
    "scripts": [
      "shared/constants.js",
      "shared/logger.js",
      "shared/storage.js",
      "background/index.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>",
        "file:///*"
      ],
      "js": [
        "shared/constants.js",
        "shared/logger.js",
        "shared/normalizer.js",
        "shared/storage.js",
        "shared/matcher.js",
        "content/filter-engine.js",
        "content/dom-walker.js",
        "content/mutation-handler.js",
        "content/index.js"
      ],
      "css": [
        "content/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    },
    "default_title": "Simple Profanity Blocker"
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "web_accessible_resources": [
    "data/wordlist-severe.json",
    "data/wordlist-moderate.json",
    "data/wordlist-mild.json",
    "data/whitelist.json"
  ]
}