I find it very easy to get lost in long rich text docs. There are two issues: i) headings 1 through 4 are indiscernible, the differences are so small that its hard to visually tell the headings hierarchy. ii) the ToC should have an option to be sticky, i.e. be always on and not only when clicking on it. Connected to this It’s also not ideal that the expanded ToC covers over the rich text.
Thoughts?