weight
Size the element's width proportional to its weight relative to other weighted sibling elements in the Row. The parent will divide the horizontal space remaining after measuring unweighted child elements and distribute it according to this weight. When fill is true, the element will be forced to occupy the whole width allocated to it. Otherwise, the element is allowed to be smaller - this will result in Row being smaller, as the unused allocated width will not be redistributed to other siblings.
Parameters
weight
The proportional width to give to this element, as related to the total of all weighted siblings. Must be positive.
fill
When true, the element will occupy the whole width allocated.