Photochemically and Thermally Programmed Optical Multi‐States from a Single Diacetylene‐Functionalized Cyanostilbene Luminogen oleh Jahyeon Koo, Jaeseok Hyeong, Junhwa Jang, Youngjae Wi, Hyeyoon Ko, Minwoo Rim, Seok‐In Lim, Seok‐In Na, Yu‐Jin Choi, Kwang‐Un Jeong