TooltipItemIcon 

Adds an icon to the reference tooltip (from clicking on an item link in chat) and the popup tooltips (when mousing over an item).

Icons can be displayed in a small frame to the side of the tooltip, in the top line of the tooltip, or used as a background for the tooltip.

Works for Items, Spells, Achievements and Currency.

Configuration:

TooltipItemIcon uses slash commands to change modes, to enable/disable certain tooltips, and to change the location of the icon frame around the tooltip. These are documented in the included commands.txt file, but here are some examples:

/ttii inside {switch to Inside mode}
/ttii background {switch to Background mode}
/ttii title {switch to Title mode}
/ttii frame {switch to Frame mode, the default}

/ttii gametooltip off {disables the icon for the popup tooltip}
/ttii compare off {disables the icon for all comparison-type tooltips}

/ttii gametooltip lefttop {moves the icon for the popup tooltip to the left side}

/ttii screen lefttop {'screen' applies the requested command to all tooltips currently visible on screen}

/ttii reset {reset all settings to the defaults}

Compatibility:

Should work with any language version of WoW; however the Slash commands are in English.

Compatible with LinkWrangler and some other Tooltip AddOns.

This is an update of TooltipItemIcon by Freddy @ curse.com. That project has since been archived (last update was Feb 2006).