Curious about the design behind opensource.org? SiteFontCheck scanned their live CSS architecture and identified 3 unique font families. The website relies heavily on <libre franklin, sans-serif, sans-serif> for its main text elements, paired with <libre franklin, sans-serif> and <libre franklin, sans-serif, libre franklin, sans-serif, sans-serif> as fallback options. Below is the precise map of font sizes, weights, and text elements used across their site.