gemini-cli - 💡(How to fix) Fix [Feature Request/Bug]: Missing ANSI Color Support and TUI Elements in Gemini CLI

What happened?

Observed Behavior: When running the Gemini CLI (specifically transitioning to the Antigravity/Gemini 3 environment), the interface is rendered in plain monochrome text. There is a total lack of ANSI color coding, bolding, or TUI (Terminal User Interface) elements like borders, highlighted headers, or status indicators.

As seen in the attached screenshot, the output is difficult to parse quickly because commands, model responses, and system alerts (like the migration notice) all share the same visual weight.

What did you expect to happen?

The CLI should utilize terminal colors and TUI components to:

Differentiate between User, Model, and System messages.

Highlight the Antigravity CLI migration notice to ensure it's noticed by users.

Provide visual clarity for the /model quota and session statistics.

Clearly define the "Plan mode" and active skills section using borders or background colors.

Client information

Run gemini to enter the interactive CLI, then run the /about command.

> /about
# paste output here

Login information

No response

Anything else we need to know?

User: /about About Gemini CLI CLI Version 0.42.0 Git Commit 68e2196d5 Model Auto (Gemini 3) Sandbox no sandbox OS linux