终于找一个解决方案了，来自一位国外友人 qoixiop，原文如下：

Disabled "draw colored line when entering gestures." in "General" in "Preferences".
This was the only thing I need to modify to make strokeIt works in every new winOS since win98 died.

经测试，完全可行，完美！希望帮到有同样困惑的 V2ER 。