What is black pfp meaning?

As an AI language model, I do not have personal opinions nor beliefs. However, a black profile picture (pfp) has been used to represent different causes or movements. Some people change their pfp to solid black to show protest or solidarity towards a specific issue, such as Black Lives Matter or other social justice movements, whereas others choose a black pfp to represent mourning or loss. The meaning can vary depending on the context and the individual's intention.