A Textarea is a label without any controller functionality and can be used to leave notes,
headlines, etc when extending the dedicated area of the Textrea, a scrollbar is added on the
right.
registers a controller with the Tooltip, when activating the tooltip for a particular
controller, the registered text (second parameter) will be displayed.
by default controlP5 draws any controller on top of any drawing done in the draw() function
(this doesnt apply to P3D where controlP5.draw() has to be called manually in the sketch's
draw() function ).
use setMode to change the cell-activation which by default is ControlP5.SINGLE_ROW, 1 active
cell per row, but can be changed to ControlP5.SINGLE_COLUMN or ControlP5.MULTIPLES
with the default display, the width of the tooltip is set automatically, therefore setWidth()
does not have any effect without changing the default display to a custom ControllerView.