I agree. I've never actually looked into them before but https://en.wikipedia.org/wiki/Unitarian ... Principles is very green (except the 7th principle which is trending), whereas https://en.wikipedia.org/wiki/Unitarian ... ix_Sources is substantially more pattern-based and I'd say turquoise. They both have a worldcentric perspective compared to the sociocentric perspective of the traditional blue religions or the egocentric purple ones.
If this principle/source split is deliberate, it's very clever in the lieutenant->soldier or teacher->student sense in that there are "sources" to study and and "principles" to follow. It seems to me that "principles" to abide are what makes a religion. Would I call this turquoise then? No, not until the principles catch up with the teaching---for example that ecological patterns and human interdependence with the planetary systems are recognized(*). There's one step beyond worldcentric, kosmocentric, which seems to be best described as something beyond mere ego-awareness.
(*) E.g. moving beyond thinking that "sustainability" is about "solar panels" and "recycling".