The preview-on-single click makes a bit more sense if you have the tabs turned off: it exists so the set of open files doesn't get cluttered when browsing a pro

The preview-on-single click makes a bit more sense if you have the tabs turned off: it exists so the set of open files doesn't get cluttered when browsing a project. I'm planning on making it optional (and likely off by default), as many people aren't a fan of the behavior. You can change the font, but it involves editing the preference files: Have a browse through "Preferences/Default File Preferences", and then copy the relevant keys into "Preferences/User File Preferences" - font_face and font_size in this case.