bottomRightCorner property
Optional widget that will be laid out in the bottom right corner (below the vertical scroll bar and to the right of the horizontal scroll bar).
If the scroll bars are not both shown, then there is no bottom right corner, and this widget will not be rendered.
If this widget is not specified, and a bottom right corner exists, then a default "empty" corner will be automatically created and laid out in this spot.
Implementation
final Widget bottomRightCorner;