I voted "other" because I'm not afraid of the dark in general, but I do have certain fears and fear/anxiety-related rituals regarding darkness in certain situations.
Generally speaking, I love the dark. When I'm sleeping, the dark is relaxing. If I'm sleeping during the daytime, I will do everything I can to be in the dark - even if that means sleeping with my head covered. I love taking walks at night. The only thing I truly dislike about power outages is the inconvenience it causes in the kitchen.
Now, here's where the selective fears and odd rituals come into play. I hate uncovered windows at night, because the darkness beyond the glass disturbs me. I don't know why. If I am in a dark room and the hallway beyond is also dark, then the door must be shut. If I get up to go to the washroom in the middle of the night, I must flick my light on when I get back to the bedroom just to make sure no one has snuck in while I was out.
When I'm walking outside at night I find that I don't enter a state of hyper vigilance unless/until I encounter loud or drunk men, solo individuals with their head/face concealed, or a group of teenagers (unless they're all female and being quiet).
I feel safer in the dark, but only as long as I know I'm alone in the dark.