Official comment
- The fonts all look weird within rekordbox (OS X)
If you are using FontExplorer or another font manager, it may have messed around with the default system fonts. Please uninstall that application, and then from the system Font Book application, select 'Restore Standard Fonts' from the File menu. Please note that this will disable non-standard fonts in your system (they are put aside in the Fonts(removed) folder).
- The fonts all look weird within rekordbox (Windows 10)
Some of the fonts used by rekordbox that were available in previous versions of Windows as default fonts were removed by Microsoft, but can be re-added for free. Follow the instructions in this article for more information.

