Purple Heart addition

I was at the nursery and saw a display in a container with this purple heart plant in it. I have always thought of purple heart as a houseplant so when I saw it in an outdoor pot, I knew the perfect place I could incorporate it into my garden.
This container is one I planted last year, the Purple shield and dies back over the winter and came back this summer, and the bugle weed is more green this year then when I planted it (I think because the pot is never in direct sun), but the pot was lacking something. The addition of the purple heart compliments the rest of the plants. Ithink the next step for this grouping is a different color for the pot.