Greasy Fork is available in English.
https://github.com/noraesae/perfect-scrollbar
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/21144/134925/perfect-scrollbar%20v0610.js
https://github.com/noraesae/perfect-scrollbar
Direct Source:https://cdnjs.cloudflare.com/ajax/libs/jquery.perfect-scrollbar/0.6.10/js/perfect-scrollbar.jquery.js