INGNI Color-coordinated / Check Dress with Brooch

I think I bought it around 2021.I wore it for about one season, so it shows signs of wear.I've also washed it.I haven't worn it for years, and it's been hanging in the closet with a cover, but the white parts of the collar and cuffs are still slightly faded? (Please refer to photos 4 and 5)Please refrain from purchasing if you are concerned.[Product Description]A dress with a traditional check pattern and a plain collar and cuffs for a clean look.[Set Contents] Dress, brooch, lining, back zipper, removable broochSize: M outstanding for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.