Vegetation Difference Layer Help:
To use the veg difference layer start by selecting a veg difference year and turning on the veg polygons. Solid colors indicate areas where no change occurred between the two years, while striped colors indicate change.
For example:
In this image red stripes indicate where the marsh type changed from saline in 2001 to brackish in 2007(1), while yellow stripes indicate where the marsh type changed from brackish in 2001 to saline in 2007(2).