Right click on the program to open the Contents map. Go to:
Omnifcus > Contents > Resources > ThemeResources > System Font > OFIFontRegistry.plist
The file is protected, so you have to create a copy.
Open the copy for example with Xcode. Go to scalable-styles and for example > OFITextStyleNoteBody. Change the value of content-sizes item 0, item 1, item 2, item 3 and/or item 4. Save the copy file.
Replace the original plist file with the copy.
