| AnimationBackend | Animation backend interface that is used to draw frames. |
| AnimationBackendDelegateWithInactivityCheck.InactivityListener | |
| AnimationInformation | Basic animation metadata: Frame and loop count & duration |
| AnimationBackendDelegate<T extends AnimationBackend> | Animation backend delegate that forwards all calls to a given AnimationBackend |
| AnimationBackendDelegateWithInactivityCheck<T extends AnimationBackend> | Animation backend delegate for animation backends that implement AnimationBackendDelegateWithInactivityCheck.InactivityListener. |