Highlight current section in the TOC

Can you please share any example reference screengrab of it for reference purposes? So that we will go through it and let you know back immediately.

I mean something like this: https://developers.google.com/docs/api/how-tos/overview. If you scroll the text the current section link become blue in the table of content.

Screenshot: https://ibb.co/gmS3797

The given provided screenshot link is not working. Can you please cross-check it once and send us the working screengrab? So that we will go through it and get back to you ASAP!