Like all ground covers, these are either a blessing or a curse. They are quite agressive, and can cover a lot of territory in a year. Lamium comes in seceral colors, the others not being quite so insistent as I remember.
They are available in white and pink. Perhaps there are new cultivars I am not aware of. They are not quite so agressive that they will kill anything they cover however. They are quite happily co existing with the Vinca Minor that escaped from another ground cover area in the yard, and look quite pretty with the blue and yellow together.