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Description
Toolbar: Activate. Pin the full panel for fonts, weights, OpenType, specific styles, sliders—optionally keep site metrics. Fonternate A designer-friendly Chrome extension that gives you real-time control over typography on any website. The toolbar is intentionally minimal: click Activate once to open the full experience. Your controls live in a pinned on-page panel (bottom-left) so you can tweak type while you scroll. Collapse it to a small button when you need it out of the way, expand it again when you don't, or press Escape to tuck it away. 1. Key Features Activate / Disable from the toolbar — One click turns the in-page panel on or off. No cramped popup workflow. Pinned panel UI — Full font controls right in the page context, resize-friendly, with an optional Pin to page toggle that locks the layout while you work. Font family and weight — Use any installed font by name. Pick weights from 100 to 900, with detection-aware options when the font supports them. Preserve typesettings — Optionally keep the site's existing letter-spacing, size, and line-height so only the typeface (and mapped weights) changes. Advanced OpenType — Ligatures (standard and discretionary), stylistic sets, swash levels, contextual alternates, and more — scoped to what the active font actually supports. Specific styles — Target headings, paragraphs, or other elements so overrides apply exactly where you need them. Typography sliders — When not preserving typesettings, adjust tracking, size, and leading in real time. Live preview and local memory — Changes appear immediately. Settings persist locally — no analytics, no cloud sync. 2. Who It's For Designers, typographers, and developers who want to audition fonts and OpenType features on real pages — not in a mockup — without touching site code. 3. Getting Started a. Click the Fonternate icon and choose Activate (or Disable to turn it off). b. Use the pinned panel to enter a font name, set weight, and toggle features. c. Turn on Preserve typesettings if you only want to swap the face while keeping the site's spacing and sizing intact. d. Use Specific styles to limit changes to certain tags, and the sliders to fine-tune metrics. e. Use Previous / Reset in the panel to revert or clear overrides as needed. 4. Technical Highlights Manifest V3. Built with TypeScript, React, and Tailwind. Fully non-destructive — overrides are applied as layered styles. Collapse the panel or disable the extension to stop. 5. Notes and Support Font names must match how they're installed on your system. If a font doesn't apply, check the spelling and confirm it's available to the browser. For updates, feature requests, or bug reports: https://github.com/yellow-type-foundry/fonternate Proudly made in Vietnam!