Display settings are focused on the layout of the giveaway, specifically, when using the landing page.

Here is the first set of options.

Template	Premium Feature. Gives you different layouts.
Page Layout?	If checked, the landing page will use the header and footer of your site (if the theme is coded like that). It includes header.php and footer.php of your theme.
Logo	You can choose a logo to display on the landing page.
Logo Link	If entered, the logo image will be linked so people can check your main site (for example).
Images	You can select multiple images here to display on your giveaway.

You can also decide how the background color and image would be. As well, there are options for images used when sharing on social media.

Background color	Color of the background on the landing page.
Background image	Background image on the landing page.
Pinterest image	Image used for Pinterest when being shared on.
Facebook image	Image used when sharing on Facebook.
Twitter image	Image used when sharing on Twitter.
Twitter Account	This is the account that will be associated when sharing the giveaway on Twitter.