# Objective

Fixes #64129.

## Solution

Reuse the source editor's tab tooltip for Markdown preview tabs.

## Showcase

<img width="1582" height="962" alt="Markdown preview tab showing its
source file path tooltip"
src="https://github.com/user-attachments/assets/cba7dcfc-f7e7-460c-aaff-ce588321d146"
/>

## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

---

Release Notes:

- Fixed Markdown preview tabs not showing their source file path on
hover.