This mod will work on all varients of the PMDG 737, the 600, 700, 800. I will try to update as soon as any changes are made to it by PMDG. Was just not liking the purplish cockpit atmosphere in the 737 and wanted something a bit more familiar.
installation instructions: Just drop the folder of your choice or all three contained inside the .rar into your Community folder and enjoy. If after a PMDG update the factory purple cockpit reappears, repeat the above step.