Font in preview pane

I’d like to have the preview of the bibliographic entry the same font as the other fields: Palatino. I’ve gone to Preferences>Display Fonts and changed the fonts to Palatino. All fields have changed except the preview pane which is still Helvetica. (The labels remain Helvetica bold, because I want them Helvetica bold.)

I’m running macOS 10.15 Catalina and Endnote X9. See attached

The font in the view is whatever Endnote thinks is “plain text” as defined in the output style template.  If you define the bibliography templates with a specific font rather than “plain font” - that is what will appear in the preview window.  I am not sure why you can’t define the font in program, but you can “override” it.