H1, H2, etc. titles need a collapse feature like Notion. This is great for collapsing dense content, leaving only the title visible.

Headings like ##### Titles ###### are smaller than paragraph text. The heading size should be larger than normal text.

List bullets are too large compared to text. While numbered lists are normal, the bullet points are huge. The different color already helps, but the size steals attention from bullets.

The divider/spacer is huge compared to text. It's interesting but a bit exaggerated. It would be interesting to allow CSS spacing customization, perhaps through a theme file like in Obsidian.

Need the ability to edit the markdown editor CSS — from fonts to spacing and sizes. Waiting for this possibility. Maybe through markdown theme modules, like in code blocks.