README

A third-party Roundcube skin derived from Elastic: a dark navigation rail, a light card canvas, a red brand accent (#cc151c), Inter typography, 12 px radii, visible keyboard focus, and both light and dark modes. Surface only — the Roundcube core stays untouched. Brand-neutral / rebrandable (accent = the --wb-accent token, logo files in images/ are replaceable).

Base: Roundcube 1.6 LTS and 1.7, skin elastic
Principle: meta.json → "extends": "elastic"; all overrides live in skins/workbench/ only. No changes to the core, plugins, or skins/elastic/.

🇩🇪 Eine deutsche Fassung dieser Dokumentation: README.de.md

Screenshots

Login	Inbox (light)

Inbox (dark)	Reading a message

Features

Light + dark via Roundcube's native toggle (moon button); tokens on html.dark-mode.
Icon-only task rail with hover tooltips (and persistent labels on wide touchscreens); a dedicated line-icon set (Lucide) replaces the most prominent FontAwesome glyphs.
Initials avatars in the list, reading header and recipient chips (cosmetic, JS only).
UX extras (subtle, removable by deleting workbench.js): skeleton loader, top progress bar, hover quick-actions, keyboard shortcuts with a cheat sheet (?).
Internationalization: skin localization (localization/en_US.inc + de_DE.inc, meta.json → "localization": true) for the login; an EN/DE dictionary in workbench.js and watermark.html keyed off rcmail.env.lang. English is the default.
Accessibility: visible focus everywhere, aria-hidden on decorative elements, the cheat sheet is an aria-modal dialog with focus trapping and a close button, and dark-mode accent text meets WCAG AA contrast.
Print: a clean, ink-saving print stylesheet (white background, black text, no screen chrome or avatars, underlined links).
RTL: Elastic provides the base flip; the custom components (avatars, quick-actions, rail tooltip, active marker, reading-header avatar) are mirrored for html[dir="rtl"].
Brand-neutral: accent = the --wb-accent token, logo replaceable in images/. No product or vendor names.

Compatibility

Verified on Roundcube 1.6 LTS and 1.7 (min-version 1.6.0) in Chromium/Chrome and Firefox (login, message list, reading, composing, dark mode — custom icons via CSS mask, the Inter webfont and avatars render identically). The icons use mask / -webkit-mask, which also covers WebKit/Safari.

Deployment note: Firefox only applies stylesheets served with the correct Content-Type: text/css (strict MIME checking). Regular Apache/nginx setups do this automatically; the MIME type can only be mangled by a Roundcube router that pipes all requests through PHP.

Installation

Composer (recommended)

composer require ar-sebastian/workbench

The roundcube/plugin-installer places the skin at skins/workbench/ and can activate it interactively.

Manual (release archive)

tar xzf workbench-skin-1.2.1.tar.gz -C skins/   # results in skins/workbench/

Releases: https://github.com/AR-Sebastian/roundcube-skin-workbench/releases

Activation

In config/config.inc.php: $config['skin'] = 'workbench'; — or per user in the Roundcube settings. Then hard-reload (assets are versioned with ?s=).

Dark mode

Roundcube has a native dark toggle (the moon button in the task menu) that sets html.dark-mode (cookie colorMode). The skin puts its dark tokens on html.dark-mode and on html[data-wb-theme="dark"], so it reuses the existing, working toggle rather than a fragile custom one.

Layout

skins/workbench/
  meta.json          extends: elastic, dark_mode_support
  styles/
    _tokens.css      design tokens (--wb-*), light + dark
    _map.less        Elastic LESS variables  <=  Workbench tokens
    _variables.less  hook -> @import "_map" (Elastic optional-variables hook)
    _styles.less     hook -> tokens inline + @import "workbench"
    workbench.less   component overrides (nav/shell/list/login/states/a11y/print)
    icons.less       Lucide line-icon set as CSS mask + currentColor; generated
                     by tools/genicons.js (do not edit by hand)
    styles.css       compiled (loaded by Roundcube)
    styles.min.css   minified
    print.css        palette remap for printing
    embed.css        palette remap for message/editor content
  fonts/             Inter 400/500/600/700 (self-hosted) + FontAwesome (from Elastic)
  images/            logo.svg, logo-dark.svg, favicon.svg + OAuth icons
  watermark.html     custom empty state for the reading pane
  workbench.js       skin JS (cosmetic/UX): initials avatars, skeleton loader,
                     top progress bar, hover quick-actions, keyboard shortcuts + cheat sheet
  tools/genicons.js  generator for styles/icons.less
  localization/      skin labels (en_US.inc default, de_DE.inc) for the login
  templates/
    login.html       override: two-column hero + card
    includes/
      layout.html    override: identical to Elastic + loads /workbench.js (one line)

Build

Compile the Elastic entrypoints with --include-path pointing at this skin folder. That lets the official Elastic hooks (_variables / _styles) pick up the overrides without modifying any Elastic file.

# from skins/workbench/
powershell -ExecutionPolicy Bypass -File build.ps1

Manual (core of the build):

lessc --include-path=skins/workbench/styles skins/elastic/styles/styles.less skins/workbench/styles/styles.css
lessc --include-path=skins/workbench/styles --clean-css skins/elastic/styles/styles.less skins/workbench/styles/styles.min.css
lessc --include-path=skins/workbench/styles skins/elastic/styles/print.less skins/workbench/styles/print.css
lessc --include-path=skins/workbench/styles skins/elastic/styles/embed.less skins/workbench/styles/embed.css

Requires Node/npm; lessc (less@4) + optional less-plugin-clean-css.

Rollback

Deselect the skin (stock Elastic becomes active again) and remove the skins/workbench/ folder. Since no core/plugin/Elastic files were modified, the removal is complete and side-effect-free.

License & credits

The skin is licensed CC BY-SA 3.0 (same as the Elastic base skin). Third-party components (Elastic, Inter, Font Awesome, Lucide icons) and their licenses are listed in NOTICE.md.

ar-sebastian / roundcube-skin-workbench

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