 She was also commissioned to design a huge colored skylight for the ceiling of Glencairn (TTC) subway station in Toronto entitled “Joy”; it was eventually removed at Rita’s request because the panels had faded after being exposed to many years of sunlight.In 1973, she began to soften some of the edges in her works, a trend that would continue the next few years; this resulted in a myriad of horizontal landscape compositions often containing a few or even only one thin hard edge line.She began experimenting with pastels in 1980 and produced a remarkable series in 1982 inspired by the nearby Nevada landscape while staying with her husband in Beverly Hills as he recovered from heart surgery.