height are adjusted so that they fully envelope the given dimensions, while keeping the aspect ratio.
The size may extend further out than the target area if the aspect ratios differ.
If this Size component has a parent set, then the values are clamped so that it never exceeds the parent on the longest axis.
The new width of the Size component.
The new height of the Size component. If not given, it will use the width value.
This Size component instance.