RIO CEILINGring it on The rio consists of a large solid brass ring embedded with led lights, casting sculptural shadows onto the ceiling. The rio collection is based on the mesmeric properties of a nimbus the white rings that appear around the moon when light refracts through ice crystals in the atmosphere. like this mesmerising natural phenomenon, I wanted rio to be enlightening and uplifting. peter straka, the kaia designer behind the rio collection, among