A lot of UI issues on the Mac are indeed being held back by wxWidgets. The file ...

		Aardappel on Aug 20, 2017 \| parent \| context \| favorite \| on: TreeSheets: Free Form Data Organizer A lot of UI issues on the Mac are indeed being held back by wxWidgets. The file format is documented and open source, but it is binary for speed and compactness (especially since it may contain images).