Just an educated guess would be helpful. I'm tinkering around with BeerSmith, trying to learn the ins & outs. The stout I have in my primary right now used their Irish Stout kit and a Dark Malt extract. Can't seem to get the OG in BS (hehe... ) even close to my actual reading.
So my guess on whats in the kit would be 5-6lbs of DME or LME whether its light or dark would contribute to the steeping grains.
If its a lighter extract say light or amber it more than likely will have 1lb or so of Chocolate malt and or Roasted Malt, probably nothing more than 1.5 lbs in total. Hopped with Fuggle or Goldings about 1 or 2 oz bittering, none late. Yeast Safale -04 english
Looking at Northern Brewer I wasnt to off with my guess lol