feat: markdown title high contrast

[aizigao]

current title's color is the same as text , I think need some color for it

from

to

[jordyvandomselaar]

Any chance we could get some colours going? 🙏

Here's what it looks like in Cursor:

[jsgrrchg]

Thank you! I was just about to submit a PR for this haha,I wonder why it hasn’t been merged yet.

[aizigao]

Any chance we could get some colors going? 🙏

Here's what it looks like in Cursor: This is what it looks like in Cursor:

Not yet, the theme variables in zed haven't h1 h2 h3 yet...