## Objective
Group the threads sidebar settings together in JSON and the Settings
Editor, using consistent “Threads Sidebar” terminology.
This follows up on #63452 now that #62883 has added configurable default
width, and includes the auto-open setting added since then.
## Solution
- Group `position`, `default_width`, and `auto_open` under
`agent.threads_sidebar`, and display their controls together in
Settings.
- Automatically migrate `agent.sidebar_side`,
`agent.threads_sidebar_default_width`, and
`agent.threads_sidebar_auto_open` across supported settings scopes,
preserving existing nested values.
- Apply changes to the default width immediately, including when the
sidebar was manually resized, and clear the saved width override.
Unrelated settings changes preserve manual sizing.
- Document all three settings, including the previously missing position
entry.
## Testing
The following targeted checks passed on the local changes:
- `cargo test -p migrator nest_agent_threads_sidebar_settings` — 7 tests
passed.
- `cargo test -p sidebar -p workspace -p agent_settings -p gpui_platform
--features gpui_platform/runtime_shaders --lib -- width
threads_sidebar_settings test_open_directory_in_existing_window` — 9
tests passed.
- `cargo fmt --all` completed successfully.
- `git diff --check` passed.
- From `docs`: `npx prettier --check src/reference/all-settings.md
src/ai/parallel-agents.md` passed.
Coverage includes migration precedence and supported scopes, settings
defaults and width limits, manual sizing and resets, persisted widths,
and auto-open behavior.
Full application tests and manual UI testing were not run. Clippy was
not rerun after the final terminology changes.
## 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:
- Improved threads sidebar settings by grouping position, default width,
and auto-open together, and applying default-width changes even after
manual resizing.
## Objective
Markdown preview appearance settings are split between root theme
settings and
`markdown_preview`, and Markdown files always open as source editors
even when a user primarily
wants the rendered preview.
## Solution
- Group the Markdown preview font settings under `markdown_preview`,
migrate their legacy keys
across supported settings scopes, and update defaults, Settings UI, and
documentation.
- Add `markdown_preview.open_markdown_files_in_preview`, defaulting to
false. When enabled, clean
Markdown opens are replaced by a rendered preview while preserving dirty
editors, temporary-tab
behavior, pane activation and focus, targeted navigation, workspace
restoration, and the escape
back to source.
## Testing
- Manually verified on macOS that enabling the setting opens Markdown
files as preview-only.
- `cargo test -p markdown_preview` (three consecutive runs)
- `cargo test -p migrator nest_markdown_preview`
- `cargo test -p settings_content`
- `cargo check -p markdown -p markdown_preview -p migrator -p settings
-p settings_content -p settings_ui -p theme_settings -p workspace`
- `./script/clippy -p gpui_apple -p markdown -p markdown_preview -p
migrator -p settings -p settings_content -p settings_ui -p
theme_settings -p workspace --features gpui_apple/runtime_shaders`
- `cargo fmt --all -- --check`
- `git diff --check`
## 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
## Recordings
https://github.com/user-attachments/assets/032ab36d-f934-4ef7-aa18-53f3955a7df8https://github.com/user-attachments/assets/dc872265-2fe0-45ac-95eb-ff820d3a8164
Release Notes:
- Added a setting to open Markdown files directly in preview mode and
grouped Markdown preview settings together.
# Objective
Prevent extension feature tags from overlapping card actions when
horizontal space is constrained.
## Solution
Let the metadata row shrink and clip while reserving space and a gap for
the action buttons.
## Testing
- `cargo fmt --check`
- `cargo test -p extensions_ui`
- `./script/clippy -p extensions_ui`
- `git diff --check`
## 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
- [ ] Tests cover the new/changed behavior (layout-only change;
before/after videos to follow)
- [x] Performance impact has been considered and is acceptable
## Showcase
Before
https://github.com/user-attachments/assets/4268ff59-d1ec-4081-b977-c748e2dd8351
After
https://github.com/user-attachments/assets/d8617b90-45e2-41b4-9504-7eb8a808e5e2
---
Release Notes:
- Fixed extension tags obscuring action buttons on extension cards.
# Objective
ACP boolean config option labels use the default text color, while
select option labels use the muted text color. This makes boolean
options such as Fast Mode look visually inconsistent with adjacent
configuration controls.
## Solution
Add a label color override to `Switch` while retaining `Color::Default`
for existing callers. Apply `Color::Muted` only when `agent_ui` renders
ACP boolean config options, leaving all other switches unchanged.
## Testing
Manually verified on macOS in the light theme.
## 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 (verified visually)
- [x] Performance impact has been considered and is acceptable
## Showcase
### Before
<img width="449" height="37" alt="image"
src="https://github.com/user-attachments/assets/1abe3e39-b243-47b3-8a62-67a0b5a17b43"
/>
### After
<img width="445" height="39" alt="image"
src="https://github.com/user-attachments/assets/e134378c-84cb-4c72-92d1-98eecc2137e4"
/>
---
Release Notes:
- Fixed ACP boolean option labels to match other agent configuration
controls.
Josh Kent