Windows are vital, indispensable components of the built environment, permitting the much-needed ingress of natural light as well as allowing occupants to view the external world from the comfort and security of their internal vantage points.

Their static and unchangeable nature serves to impede their functionality however, as glass has traditionally been manufactured in a single colour with a fixed level of transparency. This means that they are unable to adapt to changing light or weather conditions outside, in order to better suit the needs of building…