* bidirectional [[wiki links]]
* support for both inline and display math
* customizable themes / CSS
* rich formatting beyond markdown (e.g. wrap content in <div> tags with custom formatting--useful for e.g. placing a box around text, etc.)
* WYSIWYG (crucial for documents with tons of math and rich formatting as above) including wysiwyg editing of tables
Tools I've tried that come close but aren't quite good enough:
* Jupyter Lab / Notebooks
* Typora
* Roam
* OneNote (just let me write $\LaTeX$ math!)
It's actually been quite frustrating. because some apps are soooo close to what I need, but they're closed-source so I'm powerless to make the small improvements I need. My current workflow for notetaking uses a pretty suboptimal combination of Overleaf, Typora, and OneNote. I'd really like to be able to replace all three with a single tool. At the moment, the only thing that comes close is a Chrome tab with document.designMode="on".
To the Obsidian team: Please add inline math support and consider WYSWIG!