In the 4.5.2 assistant (as is the case in 4.5.1) there is the Edit | Preferences dialog. In this dialog, one can set the desired font for the "Browser" and "Application". Setting the "Browser" font (by checking the "Use custom settings" checkbox and changing any combination of the 4 dropdowns) will change the font displayed in the display view(s). In 4.5.1, these settings are persistent; the settings are "remembered" and appear on subsequent invocations of the Assistant. In 4.5.2, The settings are ignored on subsequent invocations, and return to the default settings, even though the user's settings appear in the Preferences dialog. One must make a meaningless change, then click OK for the user settings to be reinstalled...where they will last until the Assistant is closed down again.