Hey guys.
I noticed this when 7.2.5 went live but it wasn't that relevant when I did spot it but holiday items (such as the vestments of summer) are now green quality and can be used for transmog during their associated holiday.
Be careful though as some items (Such as the lovely dresses) don't seem to have automatically upgraded to green and need to be recollected.
Overall nice change, shame it's not all year round as the summer shoulders are quite nice. I wonder if they will all be active for the trail of style.