API ITEM QUALITY COLORS
From WoWWiki
This is an array of item quality colors, used to color the item name any place it appears.
You can also refer to them using ITEM_QUALITY_COLORS[X]. The "description" of the item is given using the constant ITEM_QUALITYX_DESC, which will be localized.
The current list is:
0 - Poor
1 - Common
2 - Uncommon
3 - Rare
4 - Epic
5 - Legendary
6 - Artifact
Notes
Patch 3.0.2 introduced quality 7 (Heirloom), but neither ITEM_QUALITY7_DESC nor ITEM_QUALITY_COLORS[7] exist as of 3.0.3.
Update: As of 3.1.1 it seems ITEM_QUALITY7_DESC is defined as "Heirloom," however ITEM_QUALITY_COLORS[7] still does not exist. Calling GetItemQualityColor(7) does return the correct colors.
