Variable Fonts technology allows users to navigate within or use multiple variations between two or more specific styles (called masters) with high precision and much smaller font files.

When we navigate between masters—in the design space—we are looking at interpolations. The contours and shapes are digitally interpreted from the masters’ data from the Variable Font. Some type design applications (or extensions) can generate previews of what the font can look like beyond the masters, what exists beyond the design space, called extrapolations.