Themes

ANetBBS ships seven hand-picked themes, all WCAG-AA-readable on
body text:

Modern Dark (default) — high-contrast Catppuccin-style palette
Classic Green — green-on-black BBS terminal look
Amber Terminal — warm amber on dark brown
Blue Ice — cyan on deep navy
Matrix — bright neon green on pure black
Synthwave — hot pink + cyan on dark purple
Paper White — light theme for daytime

Per-user

Profile → Themes lets the user pick. Choice is sticky.

Custom themes

Admin → Themes has a builder where the sysop picks colors with
hex pickers. The full set of CSS custom properties:

--theme-bg            page background
--theme-bg-dark       darker bg (cards, modals)
--theme-primary       accent / borders
--theme-primary-dark  hover / active accent
--theme-text          body text
--theme-text-muted    secondary labels
--theme-card-bg       card surface
--theme-input-bg      form fields
--theme-input-focus   focused field
--theme-border        misc borders

The theme builder writes all 10 so you don't need to touch CSS.

Toggle default

Mark one theme is_default=True to make it the choice for users
who haven't picked one yet.