Hatch with Background Color in a Corridor
This nifty stacked Code Set Style trick works with any subassembly that includes multiple stacked Link codes assigned in the Subassembly.
It is also possible to employ levels of screened printing to both the hatch and the background fill in both STB and CTB with some planning.
Remember that Civil 3D includes the important Generic Pavement Structure (GPS) subassemblies which allow us the considerable liberty to assign custom Code names and other details inside the sub.
The link to Jeff's earlier series of videos on Corridor Code Set Style Hatches