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SlimBar adds a compact accessibility toolbar to the front end of your WordPress site. Visitors can switch contrast modes, adjust font size, highlight keyboard focus, and pause animations. The plugin keeps its assets self-hosted and stores user preferences locally in the browser.
<h4>The Four Controls</h4>
1. High Contrast Toggle 
– Three modes: Off → High-contrast dark → High-contrast light 
– WCAG AAA compliant color ratios (7:1+) 
– Persistent across page loads
2. Font Size Scaler 
– Four discrete steps: 100%, 115%, 130%, 150% 
– Scales rem-based typography 
– No slider confusion
3. Keyboard Focus Outline 
– Highly visible 3px outline with offset 
– WCAG 2.2 AA compliant by default 
– Uses <code>:focus-visible</code> (not <code>:focus</code>) for better UX
4. Pause Animations 
– Reduces motion for vestibular disorders 
– Auto-detects OS <code>prefers-reduced-motion</code> preference 
– Mirrors what the OS setting does
<h4>How It Works</h4>
<ul>
<li>Self-hosted CSS and JavaScript loaded from your site</li>
<li>Preferences saved in <code>localStorage</code> for returning visitors</li>
<li>Reduced-motion support based on the visitor’s operating system preference</li>
<li>Fixed-position toolbar trigger that stays available across the site</li>
</ul>
<h4>Features</h4>
<ul>
<li>Four Essential Controls: Contrast, font scaling, focus outline, and animation pause</li>
<li>Preference Persistence: All settings saved to localStorage and survive page reloads</li>
<li>OS Integration: Automatically respects <code>prefers-reduced-motion</code> on first load</li>
<li>WCAG 2.2 AA Compliant: The toolbar itself meets accessibility standards</li>
<li>RTL Support: Full right-to-left language support</li>
<li>No Inline Event Handlers: Uses JavaScript event listeners instead of inline <code>onclick</code> attributes</li>
<li>Theme Compatible: Designed to work with WordPress themes and page builders</li>
<li>Admin Customization: Position, colors, feature toggles, and exclusions</li>
<li>Mobile Optimized: Responsive design with proper touch targets (48×48px)</li>
</ul>
<h4>What This Plugin Does NOT Do</h4>
<ul>
<li>NOT a full-site accessibility scanner</li>
<li>NOT an ADA/EAA compliance guarantee</li>
<li>NOT a text-to-speech or screen reader</li>
<li>NOT a dyslexia font tool</li>
<li>NOT connected to any remote service</li>
<li>NOT supported on Internet Explorer 11</li>
</ul>
<h3>Privacy Policy</h3>
SlimBar does not collect, store, or transmit any personal data. User preferences (contrast mode, font size, focus outline state, and animation state) are stored locally in the browser using localStorage. No data is sent to servers or shared with third parties.
<h3>Credits</h3>
<ul>
<li>Icons: Custom SVG icons designed for accessibility</li>
<li>Color schemes: WCAG AAA compliant palettes</li>
<li>Testing: WordPress Accessibility Team guidelines</li>
</ul>
<h3>Support</h3>
Support is handled in the WordPress.org support forum: 
https://wordpress.org/support/plugin/slimbar/

SlimBar

Accessibility toolbar for WordPress with contrast, font size, focus outline, and motion controls.

Robert Chapin

Input fields on the WordPress admin screens have been nearly invisible since version 2.7. After a year of hacking CSS files to work around this problem, Matt suggested I make a plugin to override core CSS values. This plugin does just that.
Fix Admin Contrast now also corrects white point issues on iPad and similar displays. Without this plugin, the administrative table colors can look the same as the background color.
If you need even more contrast, consider my plugin called <a href="https://wordpress.org/plugins/high-contrast-admin/" rel="ugc">High Contrast Admin</a>

Fix Admin Contrast

Improves the visibility of administrative form fields and tables.

SlimBar vs Fix Admin Contrast