The manuscript's botanical drawings are no less strange: the plants appear to be chimerical, combining incompatible parts from different species, even different kingdoms.
The humans have reverted to a preindustrial existence in a world populated with chimerical beasts such as the saurian jodphurs, relying on bio-sciences for whatever support they can derive.
Colors that are impossible to achieve through any constant illumination pattern, but simple to access through fatigue effects in the human eye, have been dubbed chimerical.