#5 - Feb. 28, 2014, 5:36 a.m.
The orange icon next to some affixes on items means that particular affix is not calculated in the Damage, Toughness, or Healing section of your character window. In other words, any item affix with an orange icon next to it isn't calculated when determining the green or red numbers that help you quickly identify if an item is an upgrade or not.