Adjusting Nested References Colors
By default, the configuration variable MS_NEST_COLORADJUSTMENT is not set. Any color adjustment made to a top level reference is applied to all the nested attachments directly. If the MS_NEST_COLORADJUSTMENT configuration variable is set to any value, then the color adjustments are applied cumulatively.
For example: Model A attaches Model B, and Model B attaches Model C. If Model C has a 90% value and 50% saturation adjustment as it is attached to Model B, and Model B has an 80% value and 70% saturation adjustment as it is attached to Model A, then Model C will display with a 72% value (80% of 90%) and 35% saturation (70% of 50%) adjustment.