Examine source code of Discord Message Deleter

{
  "manifest_version": 3,
  "name": "Discord Message Deleter",
  "version": "1.0.0",
  "description": "Discord Message Deleter allows you to bulk delete messages effortlessly, providing the best way to clear your Discord history.",
  "permissions": [
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "*://*.discord.com/*",
    "https://extensionpay.com/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Toggle Deleter Window"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "discord-message-deleter@ext.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "ExtPay.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.discord.com/app",
        "https://*.discord.com/channels/*",
        "https://*.discord.com/login"
      ],
      "js": [
        "content.js"
      ]
    },
    {
      "matches": [
        "https://extensionpay.com/*"
      ],
      "js": [
        "ExtPay.js"
      ],
      "run_at": "document_start"
    }
  ]
}