12. The computer-readable storage medium of claim 9 , wherein the style transformation selection is a horizontal flow selection, wherein the style transformation model is a horizontal style transformation model, wherein a first horizontal position style value is determined for the semantically indicated top level of the semantic model, and a second horizontal position style value is determined for the semantically indicated subordinate level of the semantic model, wherein the first horizontal position style value is applied to the parent graphic object, and the second horizontal position style value is applied to the child graphic object.
9. A computer-readable storage medium having computer-executable instructions for changing the style of a graphics chart, the instructions comprising: generating a graphic chart in a first portion of a display on a diagramming application, wherein the graphic chart includes a parent graphic object, and a child graphic object; automatically generating a semantic model based on the generated graphic chart in a second portion of a display of the diagramming application, the semantic model being configured to describe the organization of the graphic chart by displaying text strings of the graphic chart in a hierarchical format, wherein a parent text string of the parent graphic object is semantically indicated in the hierarchical format as a top level, wherein a child text string of the child graphic object is semantically indicated in the semantic model as a subordinate level indented in relation to the top level; receiving a style transformation selection from a user interface; accessing a style transformation model based on the style transformation selection, the style transformation model including style values for configuring the style of the graphics chart; generating a style transformation definition, wherein the style transformation definition is generated by identifying the semantically indicated top level of the semantic model, and identifying the semantically indicated subordinate level of the semantic model, wherein a style value is determined from the style transformation model based on the semantically indicated top level of the semantic model, and the semantically indicated subordinate level of the semantic model; applying the generated style transformation definition to the graphic chart to render the graphic chart according to the style value of the style transformation definition, wherein the determined style value is applied to the parent graphic object, and the child graphic object; and receiving a change to modify the subordinate level semantically indicated in the semantic model in the second portion of the display of the diagramming application, wherein, in response to the change, automatically changing a position of the child graphic object in the graphic chart in the first portion of the display of the diagramming application.