In Affinity Designer go into the pixel persona since this is a set of raster brushes.
- In the brush panel, click on the corner button to bring up the brush menu.
- Select ‚Import Category…’
- Select the .afbrushes file.
Author: DIVart Andrzej Wojciechowski / Author URI: http://blog.divart.pl / License: GNU General Public License v2 or later