That's what I was thinking at first, but then remembered it is for Valentine's Day so red and pink really should be the colors. Having a different pattern would
allow new players the nice hearts, while letting the originals to stay 'special.'
Purple could work, though, too. Idk how white hearts would look. Perhaps a mixed multi colored heart pattern with purple, red, and pink? Perhaps release the red & pinks with new patterns (obtained in the classic manner), a purple pattern for a higher price, and then the red/pink/purple combo by having the first three & accepting a multi part quest to wave at specific bosses?
Just a few fun ideas. Which means sts has plenty of viable options with bringing back hearts for Singles Awareness Day. :D