Examine source code of Anti-Ad-Ad-Killer

{
  "manifest_version": 3,
  "name": "Anti-Ad-Ad-Killer",
  "version": "1.15",
  "description": "Blocks ads everywhere. YouTube ad skipping, Shorts hiding, side rec toggle, allowlist & CSS cosmetic filtering. Removes are you still watching window.",
  "permissions": [
    "declarativeNetRequest",
    "declarativeNetRequestFeedback",
    "storage",
    "tabs",
    "scripting",
    "webRequest"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon_16.png",
      "32": "icon_32.png",
      "48": "icon_48.png",
      "128": "icon_128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content_youtube.js"
      ],
      "css": [
        "youtube_cosmetic.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_cosmetic.js"
      ],
      "run_at": "document_end",
      "exclude_matches": [
        "*://*.youtube.com/*"
      ]
    },
    {
      "matches": [
        "*://*.google.com/*"
      ],
      "js": [
        "content_google.js"
      ],
      "run_at": "document_end"
    }
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "block_rules",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f7e3a291-6c84-4b2d-9e05-3d718a52bc67}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "icon_*.png"
      ],
      "matches": [
        "*://*.youtube.com/*"
      ]
    }
  ]
}