Different ones have mentioned color-blindness. I learned a few years ago that there are different kinds of color blindness, not just red/green. My nephew has a form that keeps him from distinguishing between yellows and purples and maybe even brown. My sister wondered about some of his comments after he learned his colors and she thought he was getting some colors mixed up. One day he was looking at a book to test color-blindness while she was getting her eyes checked and they discovered his color-blindness. So your friend may need to get her eyes tested for all forms of color-blindness. But it could be she just has different ideas about what goes together than most people. Does she like the combinations she puts together? I've seen some colors put together in quilts that I don't like, but I'm sure the person who made them likes them. Or they may be like my grandmother who just put together whatever she had because for her, buying new fabric and cutting it up was a waste. You only made quilts from scraps.