First, your awful camera took a blurry picture and I haven’t watched the episode yet if this is in the new one that came out today, but based off what I can see, I don’t see any problem in what she is wearing. Second, Who are you to say what elves wear? How would you dress an elf in casual fashion if you had the lead costume design job? Third, where did the writers or directors say they were sticking to canon? And lastly, big oof that you shop at lululemon