Magenta/Red ink....easily the most prone to colour leaching into the plastic - Baby Crumpet, Gusty, Scoops and so many more are often seen with their purple symbols having turned blue-ish and others have pink symbols which turn to a very light pink or white...
Thats all that has happened here with the white symbols [which do still look a very faint pink] have lost some of the pigment...
Cute though! Nothing wrong with having lots and lots of Bow Ties...she is so gorgeous!