# Brush Component¶

The Brush component is a freehand drawing tool.

## Properties¶

Namestring

Everything in a PsychoPy experiment needs a unique name. The name should contain only letters, numbers and underscores (no punctuation marks or spaces).

Startint, float

The time that the stimulus should first appear.

Stopint, float

Governs the duration for which the stimulus is presented.

line settings:

Control color and width of the line. The line width is always specified in pixels - it does not honour the units parameter.

opacity :

Vary the transparency, from 0.0 = invisible to 1.0 = opaque

API reference for Brush