Brighter colors but really anything with just a little color. It doesn’t have to be neon or anything... My bread and butter spoon is a black wiggle. You can catch anything that swims on that spoon. Meat may work but I wouldn’t bother if your goal is to catch steelhead. Speed somewhat matters. Anywhere from 2.4-3.0 for me. Temp doesn’t matter much as they stay in the upper 30% of the water column. Fish deeper water for them. 200fow or more. Fish anywhere from 30 to 75 down for steelhead.