Phase 5 of the shell theme system (THEME_SYSTEM_PLAN.md §11): a second
builtin, demo 02's flush edge-to-edge bar with pill workspaces, a plain
date+time clock, and cpu/ram chips instead of the media widget.
- bread-theme/assets/shell/glass-workbench/: theme.toml + CSS template,
faithful to bos-ui-demos/02-glass-workbench.html. Accent maps to the
`green` palette token (flat, not a gradient) rather than a hex literal,
so pywal theming still works.
- builtin.rs: generalized from a single hardcoded liquid-motion constant
pair to a small BuiltinTheme registry (builtin::ALL / builtin::find),
so mod.rs's discovery/list()/resolve_builtin no longer special-case one
id. liquid-motion stays the pinned fallback in resolve_builtin().
- manifest.rs: KNOWN_MODULES gains "cpu"/"ram".
- types.rs: new Tokens::bar_border() ("full" default vs "bottom") so a
flush bar can ask for a single hairline instead of an island's full
border.
- Tests: builtin loads, appears in list() alongside liquid-motion, and its
window spec is the flush/edge shape (36px, zero margin, radius 0).
cargo test -p bread-theme --lib: 63 passing (59 prior + 4 new).
radius (20 -> 8) and icon_px (36 -> 32) were demo-derived aspirations, not
what breadbox implements today (.launcher-bg's actual border-radius and
make_icon's actual set_pixel_size). row_anim/rule/footer/sections/modes are
kept but marked declared-but-not-yet-consumed: breadbox implements none of
row animation, a rule/divider, a footer, sections, or query modes today, so
the manifest should say so rather than imply they're live. Adds a builtin
launcher test mirroring the existing window/tokens fidelity tests.
Reproduces breadbar's now-removed fixed Lua-widget interleave
(right-of-workspaces, left/right-of-clock, left-of-stats) as explicit
widget: slot entries, so the builtin theme still renders pixel-identical
to today's bar under breadbar's new theme-driven widget placement.
`tray` deliberately has no slot entry anywhere — it stays in the
control-panel popover regardless of [bar.slots].
Updates the one test asserting the builtin's slot contents.
Implements the shell theme manifest layer from THEME_SYSTEM_PLAN.md
§4-5: ShellTheme/WindowSpec/Slots/Tokens/LayerRule types, TOML
discovery (user -> system -> compiled-in builtin), one level of
`extends` deep-merge, deny_unknown_fields validation naming the
offending key, slot module-name validation, and css() token
substitution with an extra.css overlay. load() never fails, falling
back to the compiled-in builtin and logging once.
Ships exactly one builtin manifest, liquid-motion, describing
breadbar/breadbox as they exist today (not the design-doc demo, which
disagrees with the code on bar side margin, launcher geometry, and the
easing curves). Compositor rules and surface specs are keyed by
layer-shell namespace and cover all five breadbar namespaces plus
breadbox/breadbar-panel/breadbar-dismiss.
watch() is gated behind the existing `gtk` feature (gio::FileMonitor
is a gtk4 dependency); the rest of the module is gtk-free so bread and
breadcrumbs can validate a theme without linking GTK. No consumer
changes — breadbar/breadbox still use their own hardcoded values.
