Styles control the display of data in your model. The Style Palette contains styles for each type of feature. Create, edit, and manage styles and style catalogs in the Style Palette.
The simplest way to apply a style to a feature is to select the style to use when you sketch a new feature. See About Sketching Features.
To apply a style to or change the style of an existing feature or surface, select the feature and then drag a style from the Style Palette and drop it on to the selected feature or surface. See To apply styles to individual features.
To apply styles to features based on their properties, create style rules using property-based expressions. See To define style rules.