CLI TUI: Clearly distinguish user prompts from Codex responses

What variant of Codex are you using?

CLI (codex-cli 0.145.0-alpha.2) on Windows.

What feature would you like to see?

Please make user prompts and Codex responses clearly distinguishable in the interactive CLI transcript.

In long sessions, a user question and the following assistant response can visually run together, making it slow to scan the conversation and verify what was asked versus what Codex answered.

A terminal-native solution could combine one or more of:

• stable role labels or prefixes, such as You and Codex
• a clear divider or consistent spacing at each turn boundary
• subtle, accessible role-specific styling that remains readable in common terminal themes
• optional configuration for users who prefer a minimal interface

The goal is not a full-screen replacement UI: it is faster visual parsing of a normal terminal scrollback while preserving native selection, copy, and scrolling behavior.

Additional information

This is a usability request from a Korean Windows CLI user who frequently reviews long conversations. Clear turn boundaries would reduce mistakes when following multi-step work.