initialTransition
type: Stringdefault: undefined
Defines a different transition to show on the first image. F.ex, if you are using a slide transition, you might want the first image to fade. You can then set this option to ‘fade’.
Built-in transitions
‘fade’ crossfade betweens images
‘flash’ fades into background color between images
‘pulse’ quickly removes the image into background color, then fades the next image
‘slide’ slides the images depending on image position
‘fadeslide’ fade between images and slide slightly at the same time