The font can be altered to make the text easier to see. The font setting is not preserved when the text is saved.
Click on the Font Button () or select Font from the Format menu. Choose the appropriate settings from the dialog. Click on Apply to change the font and to check that it is suitable, leaving the dialog open. Click on OK to change the setting and close the dialog. Click on Cancel to close the dialog, leaving the current settings.
The font on the message window will be the same as the font in the main window.