Geometrical and electrical transformations of dendritic trees. The structures must be instances of BranchedCell. Their passive properties are defined in a CellProps object and the actual transforms are evaluated by the CellTransformer object.
| field | type | contents / default value | |
| BranchedCell | list | BranchedCell | |
| CellProps | list | CellProps | |
| transforms | object | CellTransformer | |
| AppletConfig | list | AppletConfig |