Select the Fonts button in the Preferences tool to open the Fonts specific preferences.
Choose a Context where you would like to set your font preferences, then change the Text Settings for that context. Look in the Sample Text area to get a preview of the font. When you have found your desired font, click OK.
Context Section:
Select the context to apply font settings to. This is the Workspace font, the Layout Editor font, etc…
Text Settings:
Select text settings including font, size, color, and style.
Sample Text:
Displays a preview of the text settings.