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Description
Highlights 'em Dashes. A performance-focused Chrome extension designed specifically to instantly identify and highlight Em-Dashes (—) and other punctuation across any website. --- ✨ Key Features - **🚀 Ultra-Fast Zero-DOM Highlighting** Built with Chrome's native CSS Custom Highlight API, Highlight Em Dashes highlights dashes in real-time with zero DOM manipulation and zero browser lag. - **🎨 Custom Highlight Colors & Smart Contrast** Choose any highlight color you love. Built-in WCAG contrast calculation automatically adjusts overlay text color for effortless readability in both light and dark environments. - **ℹ️ Unicode Inspector Tooltip Mode** Hover over any highlighted dash to instantly inspect its character glyph, standard name (e.g. *Em Dash*), Unicode code point (`U+2014`), and HTML entity (`—`). - **🎯 Granular Site Permissions & Domain Manager** Easily toggle highlighting on or off for specific websites from the popup, and manage your full list of blocked domains in one place with one-click unblock or clear-all. - **🔣 Broad Dash & Punctuation Support** Select exactly which dash types to highlight: - Em Dash (`—`, `U+2014`) - En Dash (`–`, `U+2013`) - Figure Dash (`‒`, `U+2012`) - Horizontal Bar (`―`, `U+2015`) - **⌨️ Keyboard Shortcut** Toggle highlighting globally at any moment using `Alt+D` (customizable via Chrome's shortcut settings). - **☁️ Cross-Device Cloud Sync** Your preferences, custom colors, and site permissions sync automatically across all your devices via `chrome.storage.sync`. - **🔒 100% Privacy-First** No tracking, no analytics, no external servers, and **absolutely no ads**. Everything runs locally in your browser. --- 📖 Why Use Highlight Em Dashes? Ideal for writers, editors, proofreaders, translators, educators, and anyone analyzing AI-generated content or typographical styles. --- 🛠️ Technical Excellence - **Manifest V3 Compliant**: Built using the modern Manifest V3 standard for longevity and security. - **Pure CSS Custom Highlight API**: Zero wrapper `<span>` or `<mark>` elements injected into page markup—never breaks website layouts or editor hydration. - **Memory Efficient**: Throttled animation-frame processing for smooth scrolling on dense pages.