I don't know if it would be in style, but a little sweetness to set off the tartness of the wheat might not be bad. Be cautious though - like CK said, it's got a distinct flavor that you don't want to overdo. If you just want more generic sweetness and color a light to medium caramel might be more appropriate, like caramunich 1. Like I said, I have no idea if that would be technically style appropriate or not, but it would work in general terms.