Systems and methods for defining at least one visual-display characteristic of at least one user-interface control are disclosed. In accordance with various embodiments of the invention, a dialog template specifies at least one style selector for the at least one user-interface control. A transformation module extracts the at least one style selector from the dialog template. A style sheet defines at least one visual-display-characteristic value that is applicable to the at least one user-interface control and that is associated with the at least one style selector. A style sheet-parsing engine uses the at least one style selector to retrieve the at least one visual-display-characteristic value from the style sheet. And a user-interface-control-drawing module draws the at least one user-interface control in accordance with the at least one visual-display-characteristic value retrieved by the style sheet-parsing engine.