Schematic Editor Options: Fonts
These options are set in the Fonts panel under Schematic Editor in the Options window.
Set the Font Name (from a drop-down selection list) and Size for text used on schematics on the Fonts tab of the Schematic Editor Options dialog box. A Sample Text display window shows the appearance of the specified font and size. Apply this font to all property displays in the active schematic specifies that all displays in the schematic editor are to use the font style and size you selected.