Now there are Orange and Yellow stats. In the past Orange stats were Attribute/Attribute/Attribute stats e.g. INT/STA/WIS. Now they're just better version of their Yellow counterparts. Either Attribute/Attribute or Attribute/Atk with higher base values. Here's one of my pieces as a visual reference.
Your orange INT/Matk's are called Control of [X] and your yellows are now Illusion of [x].
Oranges come from last boss instance drops or Proof of Myth pulls. PoM's are obtained from downing certain World Bosses and some events during the year.
Your yellows come from instance loot or by pulling using in-game currencies such as Phirius Shells (from doing minigames) or Energy of Justice (zone event). EoJ's are basically farmable Shells tbh.