The animation option only controls the popup animation. Currently, the widget does not expose a way to apply a specific options to the underlying Calendar widget.
You can, however, disable them using an additional code - retrieve the calendar widget and disable the animation. Check the following demo that demonstrates this approach:
If you want to control the vertical and horizontal effects then you will need to define animation.horizontal
options. Please note that you cannot disable only one direction (you will need to disable all animations at once). In general, the calendar navigation is not exposed, because it builds a special wrapper element to navigate correctly, which shrinks the list of the supported effects.
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