This module contains logic for configuring the style of Ink‘s freehand strokes. The precise style of a stroke is defined by Brush, which specifies a size, color, epsilon (minimum unit considered visually distinguishable), and BrushFamily. BrushFamily (analogous to font family) defines a general style of stroke that can be in a variety of specific colors and sizes. The experimental custom brush API brings the full flexibility of Ink’s core cross-platform implementation to Jetpack, allowing for configurable shapes, textures, and dynamic behaviors. This lets Ink mimic strokes drawn by beautiful and unique drawing tools (pencils, pens, markers, highlighters, brushes, and more) but also far more unusual possibilities (washi tape, a laser pointer, rainbows, a trail of clouds, the sky's the limit).