Anna Sorokin, the fake heiress accused of being a society scammer, was found guilty. There is an Instagram account devoted to her style in court. Our chief fashion critic @VVFriedman explains why courtroom fashion actually matters.— The New York Times (@nytimes) May 2, 2019
The linked article isn't just about Sorokin but about various celebrities making questionable courtroom fashion choices. Excerpt:
And in 2011, during her trial for felony grand theft in Los Angeles, Lindsay Lohan garnered more attention for what she wore on her way to court — very short, clingy dresses, often in white or beige — than for the reasons she was in court, which may not have helped with her legal troubles, but made a different kind of case for her own fame in the public eye. “She walks into court like a movie star,” the lawyer Gloria Allred told The Times during the trial. “Apparently she hopes to be one.”Some people get attention, some grab attention, and some — these are the ones you need to look out for — garner attention. It's not enough for them to have the attention right there in the moment. They need to amass it — to pile it up as if in a storehouse or granary.
Ms. Allred also said then that her own general approach was to advise clients to dress for court as though they were dressing for church.
ADDED: My all-time favorite celebrity courtroom look was Anna Nicole:

She won — in the Supreme Court, on a jurisdiction issue — and then she died and then she lost.
AND: To my eye, the look Anna Sorokin conjures up is the persecuted innocent:
