Icons
These options allow you to choose between various styles for the Icons sets used by the game.
There are five types of Icons used by the game. They are Combat, Items, Skills, Spells, and Weapons. You can choose a different set of Icons to use for each type.
The Combat icons are the used to display the various combat styles used during melee combat as shown in the example below.

The Item icons are used to display various items used in the game such as a vest, helm, etc. as shown below.

The Skills icons are used to display various special skills that characters get such as Quickcast, Run, Stealth, etc. as shown below.

The Spell icons make up the majority of the icons. They are used to display the various spells used in the game such as buffs, nukes, realm abilities, etc. as shown in the example below.

The Weapon icons are used to display the various weapons used in the game such as swords, spears, hammers, shields, etc as shown in the example below.