Cmd. /theme
Choose and persist the TUI syntax-highlighting theme.
Key takeaways
/themeopens a picker to preview and save Codex TUI syntax-highlighting themes.- Use it to improve diff contrast in light or dark terminals and to standardize a theme for screen-sharing and reviews.
- Themes are purely visual; they do not change model behavior or permissions.
- Document custom theme-file installation if you distribute a theme to the team.
Original Command Declaration
/themeOfficial Summary
/theme opens the theme picker so you can preview and save Codex TUI syntax-highlighting themes.
Usage
/themeGood Examples
- Improve diff contrast in a light or dark terminal.
- Standardize the theme used during team screen-sharing and reviews.
Similar Commands
| Command | Difference | Choose It When |
|---|---|---|
/theme | Changes code and diff highlighting | Readability needs tuning |
/statusline | Changes footer fields | You want different visible status data |
/title | Changes terminal title fields | You need better window identification |
Use Cases
- Making code reviews easier to scan.
- Including a standard TUI theme in onboarding docs.
Cautions
- Themes do not change model behavior or permissions.
- Document custom theme file installation if you distribute one.
Release Basis
- Judgment: official docs listing
- First evidence version: official slash commands documentation
- Date (UTC): verified 2026-05-21
- Release link: https://developers.openai.com/codex/cli/slash-commands
Sources
- Codex slash commands: https://developers.openai.com/codex/cli/slash-commands
- Codex CLI features: https://developers.openai.com/codex/cli/features