| Interface | Description | 
|---|---|
| Outlineable | Represents a two-dimensional object to which outlines can be added or removed. | 
| Class | Description | 
|---|---|
| Alignment | Provides constants and utility methods in order to position a graphical object considering its alignment within an
 area or with an anchor point. | 
| OutlineHelper | Provides utility methods to apply outlines and backgrounds. | 
| Rectangle | Represents a rectangle with a position and a size. | 
| Size | Represents a size (width and height). |