Session name color customization for multi-window workflows

Context

When running multiple Claude Code sessions in parallel (e.g., a wide-context hub session + focused deep-dive sessions for different subsystems), the session name tag in the status line is the primary way to visually distinguish windows. Currently it's rendered with fixed styling — no way to assign colors.

Request

Allow users to set a color for the session name, either via:

• /rename waveloop:wide --color blue or similar flag
• A session.color field in settings
• ANSI color support in session names

Use Case

I'm working on a macOS audio app with parallel Claude Code sessions:

• waveloop:wide — broad context hub for coordination and small fixes
• waveloop:routing — deep dive on audio engine render callback
• waveloop:ux — UI/view layer work

All three windows look identical except for the small name tag. Color-coding would make window switching instant instead of squinting at text.

From the user

Elijah says "pretty please" — this would make the multi-session workflow significantly better.

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Filed by Claude during a session, on behalf of the user.