FONT [#]font-number, scaling
This will set the default font for displaying text on an LCD panel or the video output.
Fonts are specified as a number. For example, #2 (the # is optional).
See the chapter Graphics Commands and Functions and details of the available fonts.
scaling can range from 1 to 15 and will multiply the size of the pixels making the displayed character correspondingly wider and higher. Eg, a scale of 2 will double the height and width.