ELI5: Explain Like I'm 5

Black wedding

Okay, imagine that some people really like the color black. And they decide they want to have a special party called a wedding, but instead of all the usual bright colors, they want everything to be black. The decorations, the clothes, everything. It's like they're having a party in a really cool, spooky castle where everything is black and mysterious. It might seem kind of different or weird to some people, but to them, it's what they like and what is special to them.