PTC ALD in Arbortext Styler > Components of Documents and Templates > Style Components > Colors > Raster Colors
  
Raster Colors
PTC Advanced Print Publisher creates a raster when applying a default gradient. This behavior allows PTC Advanced Print Publisher to use as a color any raster graphic that it recognizes.
PTC Advanced Print Publisher provides the fRasterColor object. It includes the same properties as gradient colors, with the exception of stops and resolution. Refer to Gradients for some information.
This feature can provide interesting results. For example, you can create a rule from a raster provided by the Marketing department and apply the rule across the top of a page.