17. A computing system that enables a user to be presented with at least one of a plurality of different, independently selectable color sets and a plurality of different, independently selectable font sets, in preparation for application by the user of at least one of a user selected color set and a user selected font set to an electronic document displayed in a main window, comprising: (a) a display; (b) a processor coupled to the display; and (c) a physical machine-readable storage medium accessible to the processor, the machine-readable storage medium storing machine executable instructions that when executed by the processor, cause the system to: (i) display, to the user, a single, live preview user interface window that is separate from a main window that displaces an electronic document, the live preview user interface window enabling the user to select each of: (1) a color set from a plurality of available, independently selectable color sets selectable through a color set sliding scale user interface control that allows the user to browse through all available color sets in the live preview user interface window, each of the plurality of independently selectable color sets including a plurality of different colors collectively defined as part of the same color set, the plurality of different colors of the plurality of color sets being pre-selected by a designer; and (2) a font set from a plurality of available, independently selectable font sets selectable through a font set sliding scale user interface control that allows the user to browse through all available font sets in the live preview user interface window, each of the plurality of font sets including a plurality of different font faces and sizes, the plurality of different font faces and sizes of the plurality of font sets being collectively defined as part of the same selected font set and pre-selected by a designer, wherein the plurality of available font sets are each selectable independent of the plurality of available color sets; (ii) in response to user selection of the color set from the plurality of independently selectable color sets through the color set sliding scale user interface control in the live preview interface, display a color sample of the plurality of different colors of only the selected color set, and apply the selected color set to a sample of text selected from the electronic document and displayed in the live preview user interface window so that the plurality of different colors of the color set are collectively applied to, and simultaneously displayed using, the sample of text, and without applying the selected color set to the electronic document, such that the sample of text in the live preview interface window includes the plurality of different colors; (iii) in response to user selection of the font set from the plurality of independently selectable font sets through the font set sliding scale user interface control in the live preview interface, apply the selected font set to the selected sample of text from the electronic document that is displayed in the live preview user interface window so that the plurality of different font faces and sizes are collectively applied to, and simultaneously displayed using, the sample of text, and without applying the selected font set to the electronic document, such that the sample of text in the live preview interface window includes the plurality of different font faces; (iv) enable a user to peruse the selected color set and the selected font set selected in the live preview interface window; (v) receive from the user a single indication that the user is satisfied with the combination of the color set and the font set selected and applied to the sample of text in the live preview interface window, and only thereafter collectively apply the plurality of font faces and plurality of colors of the selected font set and color set to the entire electronic document such that all text elements of the entire electronic document are formatted to include corresponding ones of both the plurality of different font faces of the selected font set and the plurality of different colors of the selected color set as selected by the user; and (vi) evaluate differences in font sizes between various text elements of the document and, after receipt of the single indication from the user and collectively with the application of the selected font set and color set, change font sizes of the various text elements to maintain approximately a proportionality between differing font sizes of the text elements of electronic document as measured before application of the selected font set and color set.
21. The system of claim 17 , wherein the machine-readable storage medium further stores machine-executable instructions that when executed by the processor, cause the system to position a font set designator so as to indicate the font set that was selected from the plurality of font sets in a visual display.