It looks to me like Harmy has done his homework and is simply trying to preserve the original colors as they appeared in the theater. From different sources that I have seen, the theatrical version appears to have had somewhat of a warm look anyway, and obviously was much much warmer than the 2004 and later versions. (There's a great reference shot of Leia on Tantive IV over on mverta's site that illustrates the difference between the gout, 2004, and the corrected legacy preservation).

Obviously it won't be 100% accurate until a better reference source becomes available, but I am happy for the most part from looking at the wp.