Dave Kempe a57581ceef feat(themes): load themes from static/themes/*.toml at runtime ...

Themes were a Vec hardcoded in src/config.rs (builtin_presets()) -
every new preset required editing Rust, recompiling, and shipping a
new release, for what is purely presentation data. PR #148 from
@dav0l surfaced this nicely by failing to compile on a brace count
in the array.

This change adds a config::load_themes(&static_path) loader that
starts from the eight built-in presets (unchanged) and then merges
in any *.toml files from <static_path>/themes/. Disk themes can
add new entries or override a built-in by using the same name; the
existing builtin_presets() remains as the always-available fallback
when the themes directory is missing or empty.

File format: flat TOML table, one file per theme, filename (minus
extension) is the theme id. See static/themes/catppuccin-macchiato.toml
for a full example. Theme names are validated against the same
allowlist we use for Vault entry names ([a-zA-Z0-9_-]{1,64}) so they
are safe to render in the UI picker and in log lines, and can't be
used for path traversal or homoglyph mischief via crafted filenames.

dav0l's Catppuccin Macchiato palette lands here as
static/themes/catppuccin-macchiato.toml - their submission is the
first user-contributed theme under the new mechanism. Closes #148.

Backward compatibility: explicit. ThemeConfig::resolve() is now a
thin wrapper over resolve_with(builtins), so existing test callers
and any production callers see no behavioural change. Existing
[theme] sections in user config.toml files - preset only, preset +
overrides, overrides only, empty section, typo'd preset - all
resolve byte-equal to 1.7.0 (verified by the new
existing_user_config_with_theme_section_keeps_working_after_upgrade
test). Eight new tests in total cover the loader, the override
behaviour, the filename validation, and the upgrade scenario.

Docs broken out: themes get docs/themes.md (the full reference);
docs/configuration.md is trimmed to a brief stub and pointer.

No build-system changes needed - debian/rules, install.sh and the
Dockerfile all use recursive `cp -r static/` so the new themes
subdirectory is picked up automatically.

2026-05-29 10:29:13 +10:00

..

catppuccin-macchiato.toml

feat(themes): load themes from static/themes/*.toml at runtime

2026-05-29 10:29:13 +10:00