This is my first experience with ArcGIS representations (10.3.1, advanced). I would like to adjust polygon fill transparency by editing the representation (via Layer Properties>Symbology>Representations). Although I can modify the color pattern, symbol levels, etc. via representations, I don't see the option to change fill transparency. Here's a screen shot:
I've reviewed a 2010 ESRI pdf (cartographic-representations-tutorial.pdf), but transparency is not mentioned, so I've resorted to using the Layer Properties>Display>Transparent setting. Shouldn't I be able to adjust transparency via representations?