On Sunday night, actresses including Jennifer Lawrence, Angelina Jolie, and Margot Robbie attended the British Academy Film Awards, more commonly known as the BAFTAs. Like at the Golden Globes, the stars wore black in support of the Time's Up movement. One guest not in black? Kate Middleton, who wore a deep green gown accessorized with emerald jewelry.

As The Cut points out, "making political statements is actually a violation of royal protocol. And, for better or for worse, Time’s Up and #MeToo are both political movements," which may have prevented the Duchess of Cambridge from wearing black if she did indeed want to. (As anyone who has watched The Crown knows, breaking royal protocol is much more complicated than just asking permission to do something.)

Look closer, though, and you'll see that Middleton's outfit had a number of subtle nods to the movement. First of all, the dress itself is so subdued in color that if you only glanced at it, you might think she was wearing black. Second, the dress featured a black ribbon, and she carried a black purse and wore black shoes. But most tellingly, the emerald color and emerald jewelry both speak to supporting women's rights. At the Golden Globes, many actresses wore emerald jewelry because green was one of the colors of the British suffragette movement. Essentially, green is the black of colors.

Frances McDormand, who took home a trophy for her work in Three Billboards Outside Ebbing, Missouri, also eschewed the unofficial black dress code, opting for a patterned frock that, in fairness, was red, pink, and black. Unlike Middleton, she spoke about her decision explicitly, saying, "I stand in full solidarity with my sisters tonight in black. I also want to say that I appreciate a well-organized act of civil disobedience," in her acceptance speech, per the BBC News.

As Middleton and McDormand demonstrated, the most effective feminist movements are the ones that allow women to express themselves when, how and if they so choose. That freedom is the very foundation of gender equality.

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