[BUG] Theme setting missing from Settings → Claude Code → Appearance; code font from the same release is still present

### Preflight Checklist

- [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code

### What's Wrong?

The desktop release notes for 1.7196.0 (May 15, 2026) state:

> Pick your code font and theme in Settings → Claude Code → Appearance

The code font half of that is still there. The theme selector is not. I previously used it to switch between a light option, a neutral dark, and a warm/brown-toned dark.

On the current build, Settings → Claude Code contains a **Code font** field, then an **Appearance** heading with exactly three rows — Interface font (Anthropic Sans / System), Transcript text size (Small / Medium / Large), Transcript width (Narrow / Medium / Wide) — followed by the **Local sessions** heading. No theme control anywhere in the section.

I've checked Settings → General under Desktop app as well; the theme selector isn't there either.

I can't find a changelog entry that removes or relocates this setting. The published desktop changelog lists no theme-related change to the Code section between 1.7196.0 and now.

### What Should Happen?

A theme selector appears in Settings → Claude Code → Appearance, as described in the 1.7196.0 release notes.

### Error Messages/Logs

```shell

```

### Steps to Reproduce

1. Open Settings (Cmd+, / Ctrl+,)
2. Go to Claude Code in the sidebar
3. Scroll to the Appearance section

- Reproduces on both a personal Pro account and a Team account, so this doesn't appear to be an organization policy restriction

### Claude Model

None

### Is this a regression?

Yes, this worked in a previous version

### Last Working Version

_No response_

### Claude Code Version

latest

### Platform

Anthropic API

### Operating System

Windows

### Terminal/Shell

Terminal.app (macOS)

### Additional Information

Related but distinct: #50519 (requests a desktop theme toggle, filed before 1.7196.0 shipped one) and #76200 (discoverability of the app-wide light/dark setting under Appearance, which is a separate control from the Claude Code section one).

No source file, test, or entry point is named. Start by reproducing the missing control at Settings → Claude Code → Appearance and compare the current build with the 1.7196.0 release note; done means the theme selector is available there without affecting the separate app-wide setting.

Written by the indexing model from the issue text.