I could be off on these, but this is my inital impression of the helmet:
1) right ear piece.... Top ear RF plate, silver like on ROTJ, middle shiny "new" look steel/silver, lower ear dark green.
The ear is definatly not one color like ESB or ROTJ.
Check out my image above. I think the top ear plate is a lightly misted or weathered version of the bottom color of the RF ear, which is pretty solid (looks almost like the base helmet color). The middle section of the upper RF ear cap is pretty bare, which makes it have more metal showing. I do believe you are seeing the same color throught, but not distributed equally like in Jedi or Empire.