Not a particularly good picture I'm afraid. On established plants, the mature leaves have cloudy white tips.
The colour develops best on established plants - newly divided plants tend to go green!
A small growing form of the species - there is a tall growing plant with a similar pattern called 'Snowcap'.
I have the plant from two different sources - this one is American and produces a good clump with nicely marked leaves. I have another
that is less impressive, though I keep willing it to clump up and colour a little better.