DMC 987 to J&P Coats: Thread Conversion

J&P Coats 6258 is a close match for DMC 987 Dark Forest Green — and notably, this same J&P Coats number is listed as the equivalent for DMC 988 (Medium Forest Green) as well. For designs using both 987 and 988 in the same piece, relying on J&P Coats for both would collapse those two value steps into a single color, eliminating the shadow-to-midtone distinction that drives foliage depth. Verify that the single J&P Coats shade provides sufficient distinction before substituting it for both values.