Show the corresponding content in the edit area or preview area.

the scroll of edit area and preview area does not sync well

"copy" feature does not work well

Spell checker

Expandable File Tree for obsessive note keepers

Can I write plugins?

Only one mermaid diagram block per document is allowed

A wonderful editor, I wish it has the feature of portability to carry in USB

Bug: User css can not overwrite some styles due to !important flag.