Something I noticed in the hardfought diff what looked interesting.
Unfortunately the most interesting bit turns out to be unuseable.
Display high altars (Moloch's Sanctum and the Astral Plane) in
bright-magenta and unaligned altars (aside from the Sanctum one) in
red. Hardfought's code also uses white for lawful, gray for neutral,
and black for chaotic, matching the unicorn colors associated with
the alignments. But those colors don't render in a reliable fashion
(see the comment in mapglyph.c) and become confusing about why they're
used for altars of particular alignments.