Custom Fonts helps merchants add custom typography without editing theme files. Choose font roles (e.g., headings/body) and optionally map additional CSS variables for advanced themes. Fonts are injected early in the page <head> to reduce flashes and improve rendering consistency. Disable anytime to revert. Compatible with most OS 2.0 themes that use CSS variables for typography. Some older or heavily customized themes may require additional variable mapping or CSS tweaks.

• Apply fonts per theme (great for previewing draft themes)
• Uses an Online Store app embed (toggleable)
• Supports WOFF2 file URLs or hosted kit URLs
• Optional advanced “Font Variable Aliases” mapping
• No changes to theme files required for most modern themes