PhotoSwipe

PhotoSwipe: "enableKeyboard: Enables keyboard support. Default = true
enableMouseWheel: Enables mouse wheel support. Default = true
fadeInSpeed: The speed of any fading-in elements in milliseconds. Default = 250
fadeOutSpeed: The speed of any fading-out elements in milliseconds. Default = 250
imageScaleMethod: How images will fit onto the screen. Either "fit", "fitNoUpscale" or "zoom". "fit" ensures the image always fits the screen. "fitNoUpscale" works like "fit" but will never upscale the image. "zoom" the image will always fill the full screen, this may cause the image to be "zoomed" in and cropped. Default = "fit"
"

'via Blog this'