Investigate `argparse` formatter handling of `color`

[savannahostrowski]

Hmm, this seems like a bug. HelpFormatter accepts color, but it is then seemingly overridden in _get_formatter. This should probably be respected, or we should remove it to avoid confusion.

Originally posted by @savannahostrowski in #139818 (comment)

Linked PRs

• GH-139862: Remove color from HelpFormatter #142274
• GH-139862: Fix direct instantiation of HelpFormatter #142384