Exterior paint color is a good example. In my little cluster of townhomes, there are about six colors that we are allowed to pick from. And no two homes next to each other can be the same color. My house is currently a light green and in theory, I could paint it to be a blue or a tan, but not a grey because of one of my neighbors. I don’t find it to be particularly vague or onerous, but if I really wanted a pink house, I would’ve seen that in the HOA documentation upfront and not bought here.