Does this flowing have any meaning or importance?

Is there any kind of meaning of having a garage door half way up other than the occupants of the home failed to put it all the way down? Not so much in the country sittings area but more inside the city's. Also I see more and more Red front doors, both of these I have heard story's which I will not laminate on as of yet. I know that putting a purple painted ring or cloth on a tree or fence post is No hunting or trespassing.

So does those have any meaning anything