My Emacs configuration https://git.cjennings.net/dotemacs/atom?h=main 2026-07-06T13:43:03+00:00 2026-07-06T13:43:03+00:00 Craig Jennings c@cjennings.net 2026-07-06T13:43:03+00:00 urn:sha1:648c150f6e4e89c9c04158795da1ab13370d7f73 nov-mode's reading cycle opened on sepia and ran sepia, dark, light. I reordered it to dark, sepia, light and made a fresh EPUB open dark. pdf-view only had a binary midnight toggle. I added a matching palette layer: a fresh PDF opens dark, and c cycles dark, sepia, light, none (C selects by name, M also cycles). Each palette is a foreground/background pair fed to pdf-view-midnight-minor-mode, so sepia and light are that same duotone with warmer and lighter colors. The pdf colors mirror the nov palettes so EPUBs and PDFs read alike. Pure name-to-colors and cycle logic are unit-tested. The live render needs a manual check.