TST stands for ton sur ton, which is French for 'tone on tone'. the monogram is the same color as the fabric of the bag, like this:
Thanks monkeydog. I thought the logo will always match with the background. If it's not TST, what color is the logo?
it means 'tone on tone'. it refers to the mini monogram line where the lv logos are the same color as the background. (i also had this question a while back!)
TST stands for ton sur ton, which is French for 'tone on tone'. the monogram is the same color as the fabric of the bag, like this: