plasma-gate.weizmann.ac.il › Grace › docGrace Tutorials - Weizmann Institute of Science 2.3 Labelling the axes using the font tool. Aspects of the axes are controlled by the axes popup which is called from Main:Plot/Axis properties or by double clicking the graph frame. All aspects of the axes can be changed like the title, the font, colour, whether or not to draw grid lines, or user defined tick marks and labels.