Abstract: One aspect of the technology described herein relates to a configuration system for determining positioning and relative sizing of at least one graphical element to be rendered on a canvas portion of a display, with the at least one graphical element having a plurality of element borders. The configuration system comprises: a plurality of guidelines which are fixed relative to the canvas portion; and a first fixed link of a fixed number of measurement units in length linking a first element border to a first guideline of the plurality of guidelines. Upon the reconfiguration of the canvas portion, the system may be configured to determine the position of the element borders. In doing so, the system may need to reposition the first guideline. The guidelines may be horizontal or vertical oriented.