Colored Mana is a purposed gameplay mechanic in Pantheon: Rise of the Fallen.
Current Status
As of 2018, Colored Mana was being experimented with as a Crafting mechanic. [1]
Original System
The following details the original plans for the Colored Mana system and is likely out-of-date.
Different classes will use different colors of mana. Some rare abilities, spells, and prayers will use more than one color of mana. These exotic abilities create an opportunity to sub-class your character, allowing players to customize their class to a degree, but without removing the interdependence between classes that is key to group content and building community.