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Zero-config system-aware dark mode for WordPress. Respects your OS preference on both frontend and admin — no settings, no toggle, it just works.

What it does

All styles are wrapped in @media (prefers-color-scheme: dark). When your OS is in light mode, the plugin is inert — zero visual impact.

Philosophy

• No toggle. No settings page. No JavaScript.
• Respects the user's OS preference, nothing more.
• Theme-aware where possible (block themes), body-level fallbacks where not (classic themes).
• Preserves your theme's accent colors so brand identity survives the flip.

Install

Git / manual:

cd wp-content/plugins
git clone https://github.com/chubes4/simple-dark-mode.git

Then activate via the Plugins screen or WP-CLI:

wp plugin activate simple-dark-mode

WordPress.org plugin directory: coming soon.

How it works

Three hooks, three stylesheets:

enqueue_block_assets          →  assets/frontend.css  (frontend + editor canvas)
admin_enqueue_scripts         →  assets/admin.css     (wp-admin)
enqueue_block_editor_assets   →  assets/editor.css    (block editor chrome)

enqueue_block_assets is the canonical WordPress hook for stylesheets that need to apply to both the public frontend and the block editor canvas (which renders inside an iframe). One hook, two contexts, no duplicates.

Each stylesheet is wrapped entirely in @media (prefers-color-scheme: dark). The frontend stylesheet overrides two CSS custom properties that most modern block themes use:

--wp--preset--color--base      (background)
--wp--preset--color--contrast  (foreground)

For classic themes that don't follow this convention, body-level fallback rules handle the most common surfaces (body, links, forms, tables, code blocks, etc.).

Palette

GitHub-dark-inspired neutrals. Intentionally generic so any theme's accent colors remain visible against the dark canvas.

License

GPL-2.0-or-later. Same as WordPress.

Author

Chris Huber — @chubes4