Home › IOStreams IOStreams Single abstraction for stdin/stdout/stderr with TTY detection and color support. Decisions byob-iostreams.1 — IOStreams wraps In/Out/ErrOut + TTY flags; commands never touch os.Std* byob-iostreams.2 — ColorScheme honors NO_COLOR + TTY, degrades to identity function byob-iostreams.3 — Data to Out, chatter and prompts to ErrOut