Examine source code of TikTok Control Panel

{
  "manifest_version": 3,
  "name": "TikTok Control Panel",
  "version": "1.3",
  "description": "Control panel for TikTok: customize element visibility (sidebar, action bar, captions, pills...), enable background playback, arrow seeking, spacebar to pause, minimalist mode...",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "TikTok Control Panel"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "*://*.tiktok.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.tiktok.com/*",
        "https://tiktok.com/*"
      ],
      "js": [
        "inject.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "https://www.tiktok.com/*",
        "https://tiktok.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "inject.js"
      ],
      "matches": [
        "*://*.tiktok.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "tiktok-control-panel@converted-extension.org",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "commands": {
    "toggle-minimalist": {
      "suggested_key": {
        "default": "Alt+C"
      },
      "description": "Toggle Minimalist Feed Mode"
    }
  }
}