This does a very tiny thing, vertically center-align callout titles that use markdown headers. I hope Obsidian just adds this eventually. Fingers crossed.

Here's the default behavior in the default theme.

Here's the new behavior in the default theme.

Steps to get it going

1. Download it.
2. Put it in your snippets folder (within the .Obsidian folder)
3. Go to Obsidian > Settings > Appearance
4. Scroll to the bottom, refresh the snippets.
5. Toggle on aligned-callout-header-titles

Enjoy, Nick