| DrawingObject |
| Gd |
| Imagick |
| DrawingObjectInterface | Interface DrawingObjectInterface |
| EditorInterface | Interface EditorInterface |
| FilterInterface | Interface FilterInterface |
| ImageInterface | Interface ImageInterface |
| Color | Holds the color information. |
| Grafika | Contains factory methods for detecting editors, creating editors and images. |
| ImageType | Class ImageType. Represent the different image types for GD and Imagick consistently. |
| Position | Hold and computes position of objects added to canvas. |