- `XDG_CONFIG_HOME` / `XDG_RUNTIME_DIR` are honoured only when absolute
(XDG spec; matches `bread_utils::xdg`), in layerrules and output.
- `output::atomic_write` pid-suffixes its temp name (`.<name>.tmp.<pid>`)
so two concurrent `bread-theme generate-output` runs writing the same
`themes/<output>.css` can't race on one shared `.tmp`.
- `hypr::socket_path` reconstructs `/run/user/<uid>` from the process's
real uid when `XDG_RUNTIME_DIR` is unset, instead of assuming 1000.
- `bread-theme --help` prints to stdout (pipeable); usage on an error
path (missing args) goes to stderr.
Adds `bread-theme layerrules`, which writes the active shell theme's
[compositor] table to ~/.config/hypr/layerrules.json (atomic write). This
lets ~/.config/hypr/scripts/ui/rules.lua read theme-driven blur/transparency/
animation for the breadbar/breadbox layer-shell namespaces instead of having
them hardcoded, following THEME_SYSTEM_PLAN.md §9. rules.lua keeps its
previous hardcoded rules as a pcall-guarded fallback for when the JSON is
missing or malformed (lives outside this repo, so not part of this commit).
Also fixes a pre-existing test race: shell::tests and the new
layerrules::tests both mutate XDG_CONFIG_HOME in parallel `cargo test`
threads but previously used separate, unrelated locks (or none), so they
could observe each other's env var changes mid-test. Both now share
bread_theme::test_support::XDG_CONFIG_HOME_LOCK.
Each Hyprland/GDK connector can have its own palette and stylesheet
under $XDG_RUNTIME_DIR/bread/{palettes,themes}/. GTK apps bind a
widget-level provider so two windows in one process can follow
different wallpapers. Bump workspace version to 0.7.4 for the tag.
Readability: pywal can emit a light value in any palette slot, and the shared
sheet assumed dark backgrounds (white text), so text vanished on light surfaces/
accents. Add ink_on() — a WCAG-luminance pick of near-black/near-white per
background — exposed as @on-bg/@on-surface/@on-accent/@on-red/@on-overlay. The
component sheet now sets colour on containers and lets labels inherit (de-emphasis
via opacity), dropping the blanket `label { color }` rule that overrode
coloured-background text. pywal hues are untouched.
Hot reload: add gtk::apply_app_css(closure) — applies an app's own CSS now and
re-runs the closure whenever the shared theme file is rewritten, so apps recolour
in place. New `bread-theme reload` verb rewrites the file (atomic rename trips
every running GUI's monitor) — the command to run after changing pywal colours.
Adds the single source of truth for bread GUI styling so the apps stop
each re-implementing (and drifting on) component CSS:
- stylesheet(&Palette): full component sheet (buttons, entries, switches,
dropdowns, lists/rows/sidebars, cards, chips, scrollbars, headings) built
from the design tokens + a canonical @define-color block (surface=color0,
overlay=color7, accent=color4).
- render() / shared_css_path() / write_shared_css(): render for the current
pywal palette and write to $XDG_RUNTIME_DIR/bread/theme.css.
- gtk::apply_shared(): load that file (or a rendered fallback) at APPLICATION
priority and watch it, so every app recolours live with no rebuild.
- new `bread-theme` CLI (generate|path|print) — gtk-free, light. Run at
session start and on palette change; apps pick it up via the file watch.
The contract is a CSS *file*, so apps stay decoupled from this crate's gtk4
version. Tests cover the stylesheet, path, and render helpers.
