Exploring brushes
Before we get too far down this rabbit hole (and trust me, it's a biiiggg rabbit hole!), let's define what a brush is in context to Krita. Essentially a brush is a collection of customizable settings, mapped to an image (or brush tip), used to lay down visual information onto your canvas via your input device (such as a mouse or tablet). Many brushes exist natively when you first download Krita, and you can also download customized brush packs from various artists who have exported their Krita brush presets (which we will get to in the Exporting our resources section of this chapter).
Brushes have hundreds of settings at their disposal, and mixing and matching these settings can offer up thousands of different brushes with various feels that can mimic traditional pencils, paintbrushes, digital spray paint, and more. Couple these settings with the fact that you can create your own brush tips from scratch, and that number grows to a near-infinite number...