The text_display item is a convenience plug-in. That is, it does nothing which could not be done using a sketchpad item, but is more convenient if you want to display a large portion of text.
The following options are available:
Duration should be a positive integer value, 'keypress', or 'mouseclick', to wait respectively for a specified interval in milliseconds, until a key has been pressed, or until a mouse button has been clicked.
Foreground color should be an English color name (e.g., 'blue') or an HTML color value (e.g., #0000FF).
Background color should be an English color name (e.g., 'blue') or an HTML color value (e.g., #0000FF).
Font family is mono, sans or serif.
Font size reflects the size of the font in points.
Align is either left, center, or right.