// Overrideable options
Shuffle.options = {
  group: ALL_ITEMS, // Initial filter group.
  speed: 250, // Transition/animation speed (milliseconds).
  easing: 'ease-out', // CSS easing function to use.
  itemSelector: '', // e.g. '.picture-item'.
  sizer: null, // Sizer element. Use an element to determine the size of columns and gutters.
  gutterWidth: 0, // A static number or function that tells the plugin how wide the gutters between columns are (in pixels).
  columnWidth: 0, // A static number or function that returns a number which tells the plugin how wide the columns are (in pixels).
  delimeter: null, // If your group is not json, and is comma delimeted, you could set delimeter to ','.
  buffer: 0, // Useful for percentage based heights when they might not always be exactly the same (in pixels).
  columnThreshold: HAS_COMPUTED_STYLE ? 0.01 : 0.1, // Reading the width of elements isn't precise enough and can cause columns to jump between values.
  initialSort: null, // Shuffle can be initialized with a sort object. It is the same object given to the sort method.
  throttle: throttle, // By default, shuffle will throttle resize events. This can be changed or removed.
  throttleTime: 300, // How often shuffle can be called on resize (in milliseconds).
  sequentialFadeDelay: 150, // Delay between each item that fades in when adding items.
  supported: CAN_TRANSITION_TRANSFORMS // Whether to use transforms or absolute positioning.
};