Bridal shower etiquette

Hey there!

i really need some advice on bridal shower etiquette. I was helping my mother try and find something to wear to my first and only bridal shower and she comes out of the dressing room wearing a white top and some colorful pants. I politely expressed to her that I was under the impression that the bride was supposed to be the only one to wear white at the bridal shower. In doing this she got very upset at me stating that it wasn’t hard enough for her to find something to wear and considering she is the mother of the bride she can wear white because she is supposed to hold a small place of honor as well. While I understand where she is coming from, part of me is disappointed because as this is the only shower I am getting, I was hoping to be the only one wearing white. I know this is a very small thing and I am in no way trying to sound selfish making it all about me but I am feeling very conflicted as it doesn’t seem that my mother is even caring about my point of view. I realize her feelings, however she already had her showers when she got married and it would be nice to just let this one be about me. I don’t know if I am wrong for feeling this way or how to even approach the situation.