decoration property

Decoration decoration

What decoration to paint.

Commonly a BoxDecoration.

Implementation 

Decoration get decoration => _decoration;
void decoration= (Decoration value)

Implementation 

set decoration(Decoration value) {
  assert(value != null);
  if (value == _decoration)
    return;
  _painter?.dispose();
  _painter = null;
  _decoration = value;
  markNeedsPaint();
}