Strokes category for general painting brushes with some texture to them. Character brushes for painting skin, hair and fur. Effects brushes for painting weather elements, lighting artifacts and similar stuff. Grunge brushes to easily rough up painted surfaces. Nature brushes for leafs and grass. Decorative brushes for clothing wrinkles, pattern strips and objects.
Brushes are free for personal and commercial work. Do not resell them as this is a free brush pack.
Hope you find them useful.
Unzip the brush pack somewhere on your hard drive. Brushes are unziped .sut files. In Manga studio in the upper left corner of Sub Tool palette there is a button that opens a drop down list. In this list there is Import sub tool option. Click it and navigate to any .sut file. Alternatively, you can just drag and drop any .sut file (or many at once) from your file browser to empty space in Sub tool palette.
Color mixing options regulate how your brush interacts wit colors that are already on the canvas and mixing of primary and sub color but to actually build colors into the brush itself you have several other options. Before you sample the shape from your brush you need to convert your brush sample layer to appropriate type depending what type of brush you are creating. If you right click on a layer name (name and not he thumbnail), you can select convert layer option. Under expression color you can choose three different types. Firs one, "color", lets you later register the brush preserving whatever colors you have chosen when painting a brush sample, second one, "gray", lets you later register a brush where whatever is painted in black will later, in the finished brush be in the tones of primary color and everything white is secondary color with gray tones varying between primary and secondary colors. Third option, "monochrome", is for single color brushes.
I hope this little explanations helps you with creating your brushes.