That would not be done, for many solid reasons.
The US has a different culture when it comes to self presentation - fashion choices, etc. - and acceptance of difference.
Kids don't wear uniforms to school, and the unequal treatment of female and male students when it comes to high school dress code infractions is gradually being challenged.
Also challenged in many places is the stigma attached to natural African hair and discrimination based on that stigma.
The personal appearance of this individual would be regarded with a shrug. While remarkable, lots of American lawyers have terrible fashion sense. I see many in action, and mentally give most of them a thorough makeover.
The courtroom is supposed to be a place with a modicum of decorum, but that doesn't necessarily include the covering of cleavage (or the straightening of African hair, etc).