What is the method for applying the polished SmartArt style to a diagram?

To apply the polished SmartArt style to a diagram, the correct method involves clicking on the SmartArt tools design tab and selecting the first option in the gallery. This approach provides a streamlined way to access various styles available for the selected SmartArt graphic. By navigating to the SmartArt design tab, users can find a dedicated section that showcases different style options, including polished styles designed to enhance visual appeal and clarity in presentations.

The first option typically represents a polished style, which is specifically designed to give the diagram a refined and professional look. This feature allows users to quickly turn a basic diagram into a visually striking one without manually adjusting individual formatting settings.

Other methods might involve accessing different aesthetic features or requiring additional steps that may not lead directly to the polished style. Thus, selecting the first option in the gallery from the SmartArt tools design tab is the most direct and effective method for achieving that enhanced appearance.