Properties are values that govern the characteristics of shapes and connectors in Unified Modeling Language (UML) diagrams.
Properties for shapes and connectors only define the appearance of the shapes or connectors in a diagram.
For example, each shape and connector has a line color property that you can specify for the color of the shape's borders or the connector's line. You can also specify property values to change connector line styles, and to show or hide compartments or compartment titles.
You can view and specify values for shape or connector properties in the Properties view.