highlightDefault not working when there is content above the ToC

[maknoon]

Hey, quick question about how to keep the first element of the ToC "unhighlighted" when I am scrolling through some sections that are placed above the ToC?

For example, here is my navigation sidebar:

• section 1
• section 2
• ToC
  • H1
  • H2
  • H3

As far as I understand, when the ToC is init and with highlightDefault = true, H1 will be highlighted, even while user is viewing section 1 and section 2 in the main frame. However when I set highlightDefault = false, the subheaders disappear entirely. How do I make H1 remain "unhighlighted" until the user scrolls to that portion of the page?

Thanks!

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[ztmsimon]

这个插件的说明太少了，无法做到导航处的高亮，不知道如何只设定在页面中间，不要顶到最上。