Skins for YouTube player

manifest.json

{
  "name": "__MSG_app_name__",
  "description": "__MSG_app_description__",
  "version": "2.3",
  "manifest_version": 3,
  "default_locale": "en",
  "background": {
    "service_worker": "/resources/js/background.js"
  },
  "content_scripts": [
    {
      "css": [
        "/resources/css/content.css"
      ],
      "js": [
        "/resources/js/preload_skins.js",
        "/resources/js/template.js",
        "/resources/js/main_content.js",
        "/resources/js/content.js",
        "/resources/js/onoff.js",
        "/resources/js/boostvolume.js",
        "/resources/js/alwayshd.js",
        "/resources/js/content_init.js",
        "/resources/js/skinbutton.js"
      ],
      "matches": [
        "*://*.youtube.com/*",
        "*://*.youtube-skins.com/*"
      ],
      "all_frames": true,
      "run_at": "document_start"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "__MSG_app_popup__",
    "default_icon": {
      "16": "/resources/images/icons/16x16.png",
      "32": "/resources/images/icons/32x32.png",
      "48": "/resources/images/icons/48x48.png",
      "64": "/resources/images/icons/64x64.png",
      "128": "/resources/images/icons/128x128.png",
      "256": "/resources/images/icons/256x256.png"
    }
  },
  "icons": {
    "16": "/resources/images/icons/16x16.png",
    "32": "/resources/images/icons/32x32.png",
    "48": "/resources/images/icons/48x48.png",
    "64": "/resources/images/icons/64x64.png",
    "128": "/resources/images/icons/128x128.png",
    "256": "/resources/images/icons/256x256.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "*://*.youtube.com/*",
    "*://*.youtube-skins.com/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "/resources/images/*",
        "/resources/js/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "externally_connectable": {
    "matches": [
      "*://*.youtube-skins.com/*"
    ]
  },
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}