Hello it's me again, I got an even crazier idea!

How about the pattern starts with the light red square.You make small half square triangles in the colors of white and dark red.
Attach them to a white or dark red rectangle.
They now will be attached to the light red square. Which will form a bigger square.
Than on two sides adjacent two each other you'll attach the rectangles. (You could use the same method like to do the half square triangles).

Be glad I'm not your neighbor, I would knock on your door and try to figure it out!