Jazza's Ultimate DIGITAL BRUSHES vs MyPaint Brushes

Jazza's Ultimate DIGITAL BRUSHES has no write-up on Specifiction yet; its figures are above.

MyPaint Brushes is a free downloadable brush-data package for MyPaint and other applications that use libmypaint. The master branch contains brushes intended for libmypaint 2.x. For libmypaint versions below 1.5, the project recommends using the v1.3.x branch or a v1.x release instead; listed releases include v1.3.1 for libmypaint 1.3 or later and v2.0.2 for libmypaint 1.5 or later. The brush files use the .myb format, and commercial use is permitted. Application developers can locate the brush directory through pkg-config: C and C++ programs use the MYPAINT_BRUSHES_DIR macro, while other languages can use the brushesdir variable. Building and installing the package uses autogen.sh, configure, make, and make install. Historical SCons scripts are included for SCons 2.x, but do not work with SCons 3. The official brush data uses public domain or CC0 1.0 licensing. Installation scripts and other non-brush-data components use GPL-2+ licensing. The v2.0.2 release note says its changes reduce preview icon file sizes and that v2.0.x brushes generally need libmypaint 1.5 or later to work correctly.