From publisher blurb:
Colours of Magic: White Fifth Edition Update
A Spectrum Shift: Chromatic Arcana Product
In some worlds, Magic may not be seen as a force in and of itself. In some philosophies, magic can not be classed by types of effect, like Evocation, Illusion or Abjuration. Instead, it might be seen as a result of fundamental aspects of arcane metaphysics.
One such theory holds that all magic is a result of the principles of Colour.
White is the colour of the spirit. Studying it grants the student the power of foresight and other extra sensory perceptions, as well as great influence over destiny.
The most gifted of White Mages are Oracles. Their sensory powers are far beyond those of others, and their words and visions are able to descry the fate of empires or even entire worlds.
Included in this product:
3 new Class options, one for each of Cleric (Faithful), Sorcerer (Chosen One) and Wizard (Oracle)
a reclassification of one eleventh of the spells of the players handbook