When editing polygons in ArcGIS Pro 1.1.1 the fill of the sketch defaults to a slight amount of transparency but you have no control over the degree of transparency. The sketch fill remains the same regardless of the layer transparency. This can make it difficult to see features you are trying to digitize off an aerial photo. ArcMap had an Editing option to "Uncheck the ‘Use symbolized feature during editing’ check box" which eliminated the fill. A similar option or the option to control the degree of sketch fill transparency would be very helpful in Pro.