LHBS has a commercial grain mill that they picked up from a microbrew. They weighed out all of the grains and the extract for me, and crushed it for me. Looked like any crushed grain I've seen on youtube or similar.
I put those grains into a medium sized mesh bag, and steeped for 30 mins at 150F, then used a full kettle of 170F water to sparge.
Not sure how big of an issue it is, but the mesh bag I used was really full. I probably should have used two bags to allow for the grains to move a bit while steeping.
The recipe also called for 2 gallons of water to steep, but I had to use 4 because I'm using a 10 gallon pot, and 2 gallons wouldn't have covered all of the grain.
Lastly, I didn't realize that the hops weren't measured out, so I put 2 oz instead of the 1.5 the recipe called for.
Would those mistakes account for the color?