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Easy Dark Mode adds a floating toggle button to your WordPress website that allows visitors to switch between light and dark modes with just one click.
Features:
<ul>
<li>One-click toggle between light and dark modes</li>
<li>Customizable toggle button position (top-left, top-right, bottom-left, bottom-right)</li>
<li>Multiple toggle button styles (circle, square, pill)</li>
<li>Option to remember user preference between visits</li>
<li>Default mode settings (light, dark, or auto based on system preference)</li>
<li>Lightweight with minimal impact on page load speed</li>
<li>Works with any WordPress theme</li>
<li>No configuration needed – works out of the box</li>
<li>Admin settings page for customization</li>
</ul>

Easy Dark Mode

Add a one-click dark mode toggle to your WordPress website - simple, lightweight, and customizable.

Mustafa Uysal

Stanislav Khromov

This plugin is only compatible up to WordPress 3.8. Later versions revamped the distraction free writing mode and are not compatible with this plugin.
Dark and light themes for WordPress Distraction Free Writing mode editor. Use one of the built-in themes based on classics such as Monokai or Q10, or write your own using CSS.
New in 3.0
<ul>
<li>Option to auto-start distraction free writing mode when editing posts</li>
<li>Per-user distraction free theme settings</li>
<li>Internationalization support</li>
<li>Auto-start distraction free mode based on user roles</li>
</ul>
Translations:
<ul>
<li>Turkish</li>
</ul>
Thanks to <a href="https://profiles.wordpress.org/m_uysl" rel="nofollow ugc">m_uysl</a> for these additions.
New in 2.1 
Introducing Autolycus and ZenHub themes – check out the screenshots in the Screenshots tab!
<a href="http://khromov.wordpress.com/2013/03/19/new-themes-for-wordpress-distraction-free-writing-mode" title="Read the announcement!" rel="nofollow ugc">Read the full announcement!</a>
Usage
Enter the Distraction Free writing Mode in WordPress by clicking the DFWM button in the editor. (Shortcut Alt+Shift+W)
<a href="http://en.support.wordpress.com/distraction-free-writing/" rel="nofollow ugc">Read mode about the Distraction Free writing Mode</a>
<h3>Requirements</h3>
<ul>
<li>PHP 5.3 or higher strongly recommended</li>
</ul>
<h3>Translations</h3>
None at the moment. Translations welcome.
<h3>TODO</h3>
<ul>
<li>More themes! (If you’ve made a theme, make sure to submit it through the WordPress Support forum!)</li>
<li>Better instructions for making custom themes.</li>
<li>Theming the top bar. (Not done due to complexity in current themes, but future themes can technically do this.)</li>
</ul>

Distraction Free Writing mode Themes

Provides dark and light themes for for Distraction Free Writing mode. Use one of the beautiful built-in themes or write your own.

Easy Dark Mode vs Distraction Free Writing mode Themes