In SS4 I notice that there are a number of textures labeled like, "Dwarven Grass". It seems that these "dwarven" textures are generally solid colors. Are there any examples of how these are intended to be used?
The only place I can find such fills is the Cartographers Annual issue 94 - the 2014 annual.
The example map in that issue's folder shows the fills in use, and the Mapping Guide should also contain information, though I haven't had time to read it myself just yet.
You can find both those things here on your system:
C:\ProgramData\Profantasy\CC3Plus\Annual\Issue 94 - Dwarven Dungeons
I will have to check on that when I am back on my system. I don't think I have issue 94 of the 2014 annual installed unless it was one of those that was freely available for download, but when I check the profantasy site for that annual I see it's designed as an extension.
So if I don't own that annual issue I can ignore those tools?
How very curious!
We may never know how that happened, but the drawing tools without the relevant CA are (as you suspected) useless.