Examine source code of MUGA: URL Cleaner. Remove tracking

{
  "manifest_version": 2,
  "name": "MUGA: URL Cleaner. Remove tracking",
  "short_name": "MUGA",
  "version": "3.0.0",
  "version_name": "3.0.0",
  "description": "Clean the tracking noise from your URLs: strip trackers, unwrap redirects, reveal short links, keep creator referrals. Open source.",
  "permissions": [
    "storage",
    "activeTab",
    "contextMenus",
    "clipboardWrite",
    "declarativeNetRequest",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "optional_permissions": [
    "https://rules.muga.app/*",
    "https://bit.ly/*",
    "https://tinyurl.com/*",
    "https://t.co/*",
    "https://link.medium.com/*",
    "https://lnkd.in/*",
    "https://fb.me/*",
    "https://ebay.to/*",
    "https://is.gd/*",
    "https://v.gd/*",
    "https://cutt.ly/*",
    "https://rebrand.ly/*",
    "https://ow.ly/*",
    "https://buff.ly/*",
    "https://rb.gy/*",
    "https://tiny.cc/*",
    "https://dlvr.it/*",
    "https://ift.tt/*",
    "https://qr.ae/*",
    "https://t.ly/*"
  ],
  "background": {
    "page": "background/background.html",
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "lib/browser-polyfill.min.js",
        "content/cleaner-bundle.js",
        "content/window-name-defuser.js",
        "content/dom-link-rewriter.js",
        "content/dom-link-rewriter-click.js",
        "content/bounce-state-cleaner.js",
        "content/history-defuser.js",
        "content/cleaner.js",
        "content/hover-preview.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/amp-redirect.js"
      ],
      "run_at": "document_end"
    }
  ],
  "commands": {
    "copy-clean-url": {
      "suggested_key": {
        "default": "Alt+Shift+C",
        "mac": "Alt+Shift+C"
      },
      "description": "Copy clean URL of the current tab"
    }
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/16.png",
      "48": "icons/48.png",
      "128": "icons/128.png"
    },
    "default_title": "MUGA"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "onboarding/onboarding.html",
    "privacy/privacy.html",
    "privacy/tos.html",
    "rules/domain-rules.json",
    "rules/path-strip-rules.json",
    "rules/path-affiliate-rules.json"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "tracking_params",
        "enabled": true,
        "path": "rules/tracking-params.json"
      },
      {
        "id": "wrapper_unwrap",
        "enabled": true,
        "path": "rules/wrapper-dnr-rules.json"
      }
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "muga@yocreoquesi.github.io",
      "strict_min_version": "129.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "128.0"
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'self'; worker-src 'self'; default-src 'self'; connect-src 'self' https: http:; style-src 'self'",
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  }
}