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Saxon Fletcher 516ef0320f chore(studio): refine Explorer toolbar, chat, and home actions (#49748)
## Summary
- Unify Explorer toolbar actions: 16px / 2px Lucide icons,
`text-tertiary-foreground` that becomes `text-foreground` on hover
(Analyze icon goes brand on hover).
- Soften chat scroll edges with top/bottom fades, and align the composer
width with the conversation content (`px-7` + `max-w-3xl`).
- Put **Run SQL** first on Explorer home, and rename the tab-bar new-tab
item from “New query” to **Run SQL** so it matches.

## Test plan
- [ ] Open Explorer and check query, notebook, and chat toolbars: icons
are 16px, muted by default, and go to foreground on hover. Analyze on a
notebook with cells: icon goes brand on hover; empty notebook still
disables Analyze.
- [ ] Open a query tab: source menu, result settings, save, and
more-options all look like the other toolbar actions (including while
the dropdown is open).
- [ ] Open Explorer chat: scroll a long thread and confirm top/bottom
fades sit on the chat surface. Composer lines up with message width (not
inset extra).
- [ ] On Explorer home, **Run SQL** is the first card; clicking it still
opens a SQL tab.
- [ ] From the tab bar **+** menu, the first item is **Run SQL** (not
“New query”); it still creates a SQL tab. **New notebook** and **New
chat** still work.

Made with [Cursor](https://cursor.com)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **UI Improvements**
* Standardized Explorer toolbar icons for consistent sizing and visual
weight.
* Updated toolbar action colors, hover states, and keyboard-focus
visibility.
  * Reordered Explorer home actions so “Run SQL” appears first.
  * Renamed “New query” to “Run SQL” in the new-tab menu.
  * Improved query source and settings toolbar controls.
* Refined AI assistant chat layout with centered content, decorative
gradients, and improved focus styling.
  * Added hover styling for the notebook Analyze action.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

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Co-authored-by: Cursor <cursoragent@cursor.com>
2026-08-31 18:36:01 +10:00
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