If you want just the themes from old Puppy releases, I ported three themes from 4.1.x and 4.3.x to GTK+ 3:
https://github.com/puppylinux-woof-CE/g ... ey_rounded
https://github.com/puppylinux-woof-CE/g ... dient_grey
https://github.com/puppylinux-woof-CE/g ... ished_blue
These themes support both GTK+ 2 and 3, so old applications that use GTK+ 2 (like ROX-Filer) look consistent with applications that use GTK+ 3, like all up-to-date browsers, Transmission and pretty much everything except some LXDE packages that still use GTK+ 2.
I think it's a shame that "official" Puppy releases (including some in development) come with themes that support only GTK+ 2, or one theme for GTK+ 2 and another for 3.