Examine source code of CAT Script v3

{
  "manifest_version": 3,
  "name": "CAT Script v3",
  "version": "1.9.94",
  "description": "CAT Script - Faction War Enhancer for Torn.com",
  "author": "JESUUS [2353554]",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "notifications"
  ],
  "host_permissions": [
    "https://cat-script.com/*",
    "https://142.44.247.35/*",
    "https://api.torn.com/*",
    "https://www.torn.com/*"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "cat-script@cat-script.com",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.torn.com/factions.php?*",
        "https://www.torn.com/loader.php?sid=attack&user*",
        "https://www.torn.com/page.php?sid=attack&user*",
        "https://www.torn.com/war.php?step=rankreport&rankID=*"
      ],
      "js": [
        "bridge.js"
      ],
      "run_at": "document_start",
      "world": "ISOLATED"
    },
    {
      "matches": [
        "https://www.torn.com/factions.php?*",
        "https://www.torn.com/loader.php?sid=attack&user*",
        "https://www.torn.com/page.php?sid=attack&user*",
        "https://www.torn.com/war.php?step=rankreport&rankID=*"
      ],
      "js": [
        "early-inject.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://www.torn.com/factions.php?*",
        "https://www.torn.com/loader.php?sid=attack&user*",
        "https://www.torn.com/page.php?sid=attack&user*",
        "https://www.torn.com/war.php?step=rankreport&rankID=*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://www.torn.com/*"
      ],
      "exclude_matches": [
        "https://www.torn.com/factions.php?*",
        "https://www.torn.com/loader.php?sid=attack&user*",
        "https://www.torn.com/page.php?sid=attack&user*",
        "https://www.torn.com/war.php?step=rankreport&rankID=*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "world": "MAIN"
    }
  ]
}