QGIS 3.2 allows the full range of text formatting options to be used within scalebar text, e.g. buffers, shadows, and background shapes.
Unreadable scale bar text is a thing of the past!
This feature was funded by North Road
This feature was developed by Nyall Dawson (North Road)
This application was created by Kartoza (Pty) Ltd. Available on GitHub! Version: 2.3.1