I got around to making a font / number system for the Planet Mover text in the book. The original was deliberately low-res, specifically because I don’t have great artistic talents, and I wanted to give no more than a general impression of what they were. For print, I really need something higher resolution. So, after experimenting a bunch with pen and calligraphy pen, I stumbled upon a basic theme that seemed to work, and did the drawing for them in PowerPoint, not so much because it has great drawing tools, but because they are adequate and I know how to use them.
The PM message is in a constructed language (or at least the script and basic structures are), so it’s more regular and less flowing that something like Elvish.
Just the numbers and basic arithmetic symbols so far. Possibly more later.