Maybe add a disclaimer in the item's description that the tulle doesn't change color. It's not exactly obvious in the shop image (since the example dyes in the image are all pastel).
I personally don't have a problem with it the way it is. Though I would have been very upset had I found out by getting one and trying to dye it myself (especially if I had my heart set on a darker color like @CarnalCherry145 ).
While it is pretty upsetting and disgusting how it is, you could technically recolor one of the costume's dds files in the gpk to make it dye the tulle as well to see it all dyed on your end. Though, this method wouldn't be endorsed by EME and will still look ugly to other people who see you wearing it.
Comments
https://store.enmasse.com/tera/item/partydownlootbox/party-down-loot-box
It appears to be intentional. The lower part of the dress is meant to be tulle/netting that stays white.
if you bought it, give it back I mean make a ticket, I won't wear that crap even in game, unless I get paid
I personally don't have a problem with it the way it is. Though I would have been very upset had I found out by getting one and trying to dye it myself (especially if I had my heart set on a darker color like @CarnalCherry145 ).