[FEATURE]: Support mouse wheel scrolling for faster navigation on macOS

[chan-yuu]

---

Type: Feature Request

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

I'm using OpenCode on macOS and noticed that the main window (especially in chat/output history) lacks mouse wheel scrolling support. Currently, I have to manually click and drag or use small increments to navigate, which is extremely slow and frustrating when dealing with long outputs or code blocks.

Expected Behavior
The application should support standard mouse wheel/trackpad scrolling to allow fast and smooth vertical movement through the content, consistent with other macOS applications.

Related Context
I've checked existing issues and found some related discussions:

• Scrolling #4495: Mentions difficulty scrolling long sessions.
• [FEATURE]: Terminal long output lacks scrollbar for quick navigation #10345, [FEATURE]: Add a scrollbar to the chat panel on Desktop #9766: Requests for visible scrollbars.
• Mouse wheel scrolling not working in Visual Studio integrated terminal #17743, Scroll not working #8449: Mouse wheel issues reported primarily on Windows/VS Code terminals.

Environment

• OS: macOS
• Device: Mouse wheel / Trackpad

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• The title should start with [FEATURE]: (not [Feature Request]) as required by the feature request template.
• The feature request template requires a verification checkbox confirming you searched for existing issues before submitting.

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

---

This issue might be a duplicate of existing issues. Please check:

• Feature Request: Support mouse scroll in TUI #18218: Feature Request: Support mouse scroll in TUI — nearly identical request for mouse wheel scrolling support in the TUI
• Scroll not working #8449: Scroll not working — related scrolling issues
• Unable to Scroll Up to View Previous AI Outputs in OpenCode #11298: Unable to Scroll Up to View Previous AI Outputs — same general problem of navigating conversation history

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

Thanks for updating the issue! Everything looks good now — the feature request is clear, follows the template, and includes helpful context. Appreciate you taking the time to revise it.

[github-actions]

Thank you for updating the issue! It now follows our contributing guidelines and looks great. We appreciate the clear description and the context provided.