There are 10 stylistic widget variations, these add a unique style variation to the widget: featuretitle, box1-4, title1-5; and various additional structural variations, these affect the layout and metrics of the widget.
Furthermore, you can also add FontAwesome icons into the Custom Variations. You will get a medium sized icon to the left of the title. Suffixes are in the icon-NAME format such as icon-star, as shown on the Typography page.
featuretitle
An example widget using the featuretitle widget variation.
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