All backends can be accessed via the backends dictionary, which represents the inventory of backends.
>>> from bewegung import backends
>>> backends.keys()
dict_keys(['drawingboard', 'pillow', 'datashader', 'cairo', 'matplotlib'])
>>> [backend for backend in backends.values()]
[<DrawingBoardBackend>, <PillowBackend>, <DatashaderBackend>, <CairoBackend>, <MatplotlibBackend>]
Backends are "lazy" objects. They only import the underlying library if actually used. For most intents and purposes, working with :meth:`bewegung.Video.canvas` is sufficient. Further details about the common structure of backends are provided in the :ref:`sections on custom backends <custombackends>`.