Pure black (ANSI 30) is invisible on dark-background terminals since
it matches the default background. Bright black (ANSI 90) renders as
gray and stays visible regardless of terminal theme.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WdESvDRS3hBaTcCsoaPQgA