What is you Christmas color theme?

Do you have a color theme for your Christmas decorations? I always loved going to Sears or Eatons when I was young and seeing all the decorated Christmas trees, they were always very well matched and color co-ordinated in the way they were decorated. There would be a tree decorated in blue and silver, and one in red and gold, another in purple, blue, and red, and so on. I have always admired those perfectly matched Christmas trees, but every year when Christmas comes around I end up going with a mixed multi-colored selection of decorations, as I can never decide which color scheme I want to go with. How about you? Do you have a Christmas color theme? Do you use the same colors every year or do you often change them?