I was thinking about WOL outfits and what not, so here's a question:

And to elaborate on the difference between option 1 and option 2, a brief explanation of my interpretations under the cut:

Illusion magic only masks the true appearance of an item, bending the light aether around the item to make it look different to the naked eye. No physical properties of the armour changes. It maintains its original dimensions and weight. If your WOL was wearing full plate armour then glamoured it to something more revealing, if someone tried to stab an exposed area, their knife would stop on impact of the concealed armour.

Transformation magic will fully alter the physical appearance of the armour into the applied glamour. It will take on the shape and structure of the WOL's desired form, but the properties of the materials used will be maintained. The high grade metal of the armour will be altered to a state where it was like a woven thread. The item would provide the same degree of protection as the original where it physically exists in its glamoured state. If your WOL glamoured their plate armour into a the street wear top, their actual abdomen could be pierced by weapon. Because this is magic you could fudge the physics if you so choose or say there's a secondary spell involved; but I'd imagine that if the transformation was completely lossless, your glamoured item will weight the same amount as the un-glamoured version. (Otherwise it would be more like a transmutation which is a lossy conversion and not reversible. The WOL turned their new savage tier BIS armour into a hempen camise and lost 95% of the material in the process. When they dispel the glamour they have that hempen camise's amount of the original armour piece.)

That's my take on the two options! I don't know if either of them really contradict any canon in-game explanations to the glamour system tbh. It's been so long since I picked up the intro quest and the only time I remember glamours being used as a plot device it was in the ARR Hildebrand quest line (I think the very end or within the coliseum arc, either way I'm not doing all that just to check and see that it says nothing of note)

I have still yet to draft up the big "All canon Arsay outfits" post but I do have so many feelings about what I glam in her jewelry slots

Earrings: gift from Emrara just before Arsay left for limsa

Choker: I hc that the cyan gem is a pendant fashioned from a bit of loose crystal Arsay grabbed around the crystal tower. She asked Tataru to make it into something she could wear always as to keep the memory of the tower (and the person in it) close to her. (pre-shadowbringers obv)

Dai-ryumyaku bracelet: A little something Arsay noticed during the day she spent in Kugane with Y'shtola before Y'shtola continued off to do her research in Doma. She went back and actually bought two, in hopes of giving the matching one to Y'shtola (friendship bracelets)! ...but backed out at the last second, worried Y'shtola would think it childish of her or might not be her style. It's probably still in a pouch somewhere

Lakeland Ring: A gift from The Exarch, when they were still on the first. It was an apology gift of sorts, for putting Arsay through all the shit that happened in Shadowbringers. He also, very embarrassingly I might add, said it would match her eyes. She treasures it dearly.

Crystarium Ring: A gift (?) from Y'shtola. Honestly it was given to Arsay quite nonchalantly, though maybe Y'shtola just didn't want to make a big show of the gesture. She said only that she noticed it while shopping around The Crystarium and thought it might suit Arsay. The fact that the colour just happens to remind Arsay of Y'shtola's white hair and pearly silver eyes is of pure coincidence I'm sure.