type: String or Number
default: 2

Defines how many images Galleria should preload in advance. Please note that this only applies when you are using separate thumbnail files. Galleria always cache all preloaded images.

  • 2 preloads the next 2 images in line

  • ‘all’ forces Galleria to start preloading all images. This may slow down client.

  • 0 will not preload any images