No. The family usually wears black, but it is not inappropriate for others to wear other colors. Clothing should be conservative and respectful of the deceased and the family.
No she is black and a mix of something else
white and something else
Miley is white and probably something else inside but outside shes white.
A blackening is a process or act of making something black in colour, or a black stain or mark.
black
white and something else
Whatever they like. Choose something that you think is beautiful, and that you can afford. It is your gesture, and no one else's.
You may be asked to carry the coffin, if its a burial, take a cord or do something else extra special for the deceased person and their family.
Same reason everyone else has a funeral, he died.
Like Everyone Else.
she's black I'm sure there is something else in her background though, but she's black.
It doesn't have to be black, but subdued colors, usually dark, and a very modest style are suitable, unless something else is asked for. Once in a while the surviving family will say "Don't wear any black. We want to see all bright colors. We are celebrating a life." But unless you receive that sort of direction, keep it conservative.