It seems like every pumpkinseed out there is different (dark, light, orange, brown, etc.) and I'm sure there are guys who would disagree, but I can tell you what works for me..........
2 drops of Lure Craft Pumpkinseed per ounce of plastic, with 1/4 teaspoon of medium black flake. From there, you can jazz it up to your likings.
Chris