Systems and methods are described for positioning graphical objects and elements of graphical objects including widgets. At least two source layouts are selected, each source layout proportioning elements of the graphical object to be positioned. An interpolated layout is generated from the source layouts whereby the graphical object is positioned based on the interpolated layout. Multiple elements may be processed so. Elements of the graphical object can be proportioned differently from one another and the source layouts may be selected based on their relationship in size to the size of a desired runtime layout. The elements can include widget regions and content within the widget regions may be scaled independently of the positioning of the widget regions. The methods may be incorporated in a machine readable medium as data and executable instructions.