Item Attributes
textureIndex
This attribute defines the index of the icon in the item's texture file that the item will use. The indicies are arranged from top to bottom and from left to right, so the top left icon has index 0, the one right to it has index 1, the one under the first one has index 15 and so on.
Examples
// Default value
textureIndex = 0;
textureIndex = 1;
textureIndex = 255;
textureIndex = 0;
textureIndex = 1;
textureIndex = 255;