My wedding dress is all lace with a little chiffon on the bust. My wedding colors are yellow and gray. My issue here is my FMIL is choosing a tight cocktail length lace dress in yellow to wear to the wedding. My mother is wearing a satin 3/4 length dress in beige. Yellow is my accent color and at this time I feel that it is inappropriate for my FMIL to wear my accent color in the same fabric as my wedding dress. She seems to think that she needs to match my bridal party. I don't. I feel as if she is trying to outshine me on my wedding day. Am I being ridiculous about this! Any advice would help!!