More tweaks to nick color generation
More tweaks to nick color generation

The purples were a bit hard to read

kenzierocks/textual-theme-Equinox,davewaxman/textual-theme-Equinox,davewaxman/textual-theme-Equinox,kenzierocks/textual-theme-Equinox,dgw/textual-theme-Equinox,dgw/textual-theme-Equinox,xlexi/textual-theme-Equinox,xlexi/textual-theme-Equinox