I reopened it, added some blue lights, at 2.7 K bytes, and saved. I reopened the original and added some yellow lights, again at 2.7 K bytes, and saved. Well, lets go on a diet together. All three frames that I used in the wreath have 256 colors. This doesn't mean that they use all those colors, this just means there are 256 colors available.
First lets reduce the color count.
I opened the first frame in Paint Shop Pro and decreased the color count to 16. Now lets decrease all three frames, animate it, and see how it looks. I hope you will agree that for the money the 3.9K wreath twinkles just as nice. Now, one final method to reduce size even more, by having one frame of the wreath, and two other frames. One contains only the blue lights and the other contains only the yellow lights.