Font Variable is a line-style Icon from Plump Line set.

The Font Variable icon shows three typographic controls: a T-shaped mark, a rounded outlined glyph, and a horizontal slider with a circular knob. Drawn in the line style on a 48px grid with a 3px stroke, its chunky rounded contours keep variable-font controls clear and friendly. Use it for font pickers, type settings, responsive typography, and design-system controls. It belongs to Plump Line set in the Plump family.