bread-ecosystem/BREAD_DESIGN_SYSTEM.md
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docs: ecosystem overview, keybinds, shared-theming, design system
README: add recommended keybinds and a Theming section documenting the
bread-theme generator + live-reloaded shared stylesheet. Add
BREAD_DESIGN_SYSTEM.md to the repo (the README links it) and update it to
describe the single-source-of-truth architecture and the migrated apps
(incl. bos-settings).
2026-06-16 17:07:03 +08:00

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Bread Design System

Unified visual identity for breadbar, breadbox, breadpad/breadman, and bos-settings.

Architecture (single source of truth)

The tokens below are implemented once in the bread-theme crate as stylesheet(&Palette) — the full component stylesheet (buttons, entries, switches, lists/rows/sidebars, cards, chips, scrollbars, headings) over a canonical @define-color palette (surface=color0, overlay=color7, accent=color4).

  • The bread-theme CLI renders it from the live pywal palette to $XDG_RUNTIME_DIR/bread/theme.css (run at login and from a pywal hook).
  • Every GUI loads that file via bread_theme::gtk::apply_shared() and live-reloads it, then layers on only its own app-specific rules.

Result: one definition, no per-app drift, and palette changes recolour the whole desktop with no rebuilds. Apps reference the shared @define-color names rather than raw palette slots.

Typography

  • Font Family: Varela Round, sans-serif
  • Base Size: 14px
  • Secondary: 12px (metadata, helper text, secondary labels)
  • Font Weight: Normal (400) for body, Bold (700) for emphasis

Spacing Scale (4px units)

Use these values consistently across all projects:

  • xs: 4px (small gaps, internal padding)
  • sm: 8px (default spacing between elements)
  • md: 12px (medium spacing, main padding)
  • lg: 16px (large padding, major spacing)
  • xl: 20px (extra large spacing, section breaks)

Border Radius

Establish a visual hierarchy with consistent rounding:

  • Primary (buttons, cards, main containers): 8px
  • Secondary (input fields, chips, entries): 6px
  • Tertiary (small interactive elements): 4px
  • Pill (fully rounded buttons, badges): 999px

Color System

All projects use pywal dynamic theming with Catppuccin Mocha as the fallback palette:

  • Background: #1e1e2e (Catppuccin)
  • Foreground: #cdd6f4 (Catppuccin)
  • Surface: #181825 (Catppuccin)
  • Accent: Dynamic (from pywal)

Color palette slots (via wal):

  • color0color7: ANSI colors
  • Semantic: red, green, yellow, blue, pink, teal

Component Standards

Buttons

  • Border Radius: 8px
  • Padding: 8px 16px (primary), 4px 8px (secondary)
  • Font Size: 14px
  • Background: Theme accent color

Input Fields

  • Border Radius: 6px
  • Padding: 12px 16px
  • Font Size: 14px
  • Border: 1px or 2px solid (blue on focus)

Cards

  • Border Radius: 8px
  • Padding: 12px
  • Margin: 8px
  • Box Shadow: Optional, for depth

Stat Labels

  • Font Size: 14px
  • Margin Right (between icon/text): 5px
  • Group Margin Right: 12px

Notification Cards

  • Border Radius: 8px
  • Padding: 12px
  • Margin Bottom: 8px
  • Font Size: 14px (summary), 12px (body)

Current Implementation

All GUI apps load bread_theme::stylesheet (via the generated shared file) and add only app-specific rules:

  • breadbar — shared base + bar window, workspace buttons, stats, notification and OSD cards.
  • breadbox — shared base + launcher panel, search entry, result rows.
  • breadpad / breadman — shared base + capture popup, type chips, note cards, reminder window, sidebar rows.
  • bos-settings — shared base + content padding only (was previously a hardcoded Nord palette; migrated to the shared stylesheet).
  • breadcrumbs — CLI tool; ANSI colours only, no GUI styling.

Palette note: the fallback is Catppuccin Mocha, but installs (e.g. BOS) drive the real palette from pywal — BOS ships a black-base palette.

Future Consistency Checks

When adding new components or updating existing ones:

  1. Use Varela Round for all text
  2. Set base font size to 14px (12px for secondary)
  3. Use spacing scale (4px units: 4, 8, 12, 16, 20)
  4. Use border radius from this system (8px default, 6px secondary)
  5. Leverage pywal colors for dynamic theming
  6. Keep margins/padding consistent across similar components