optical variety of in-game items

[Enquista]

hey there, i am pretty new to this game and i have plenty of questions.

but lets start with something ordinary.. actually there are many things i love when it comes to rpgs. one thing of course is the ability to customize the optical appearance of my character. so far i am impressed by the great looking design of armors and weapons in FFXIV, but lets talk about diversity..

are there possibilities to change the look of items? like dyeing or transmuting the optical appearance of various items? and what is the overall variety of outfits and item optics form level 1 to level 50 and in endgame?

i'm just curious because i saw level 50 players wearing pretty much the same stuff like every one gets at the beginning.