Each gallery display style uses a unique mixture of settings to optimize the way your images are displayed in your galleries. One of the areas where this is the most apparent is in the image thumbnails. Did you know you can completely customize the way thumbnails are displayed in your galleries?
To change the Display Style used by a gallery, open that gallery under My Images & Videos, then click on the link displaying the current display style in use, located right below the gallery title. This pop-up panel will also let you customize your display styles. In the Media Thumbnails section, you can select from many different thumbnail styles. Below is a quick overview of each style.
Magic Mosaic Wall Tile
This is the default thumbnail type used for the Portfolio display style. As the name implies, it will attempt to arrange your images in a mosaic pattern, cropping and scaling images to achieve a proper fit. This style is sleek and stylish, but not ideal when image order is important, as images may be shifted around to achieve a better fit.
Magic Vertical / Horizontal Wall Tile
If you don't want your images to be cropped but still want to present them in a stylish way, this is a great thumbnail type to choose. The Vertical and Horizontal style will try to prioritize a certain orientation of the images. The example above is set to prioritize vertical images, while also arraying the order of the images vertically.
Within 175x175px (or other sizes)
Using this thumbnail type will display your images in an evenly-spaced grid, retaining a sense of order. One advantage is that images do not get cropped using this style, though there may be some odd gaps between images if their orientations differ greatly.This style is convenient for client proofing, since your client can see the orientation of images at one glance, with no cropping.
175x175px Square Crop (or other sizes)
The square crop will create a perfect grid of square thumbnails that look very orderly. If you have very tall or very wide images in a gallery, the square crop may not be ideal, as a lot of the image will go missing. Otherwise, it's a great way to achieve a clean look.