| 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). 
 |