luminist
/luːˈmɪnɪst/Definitions
1. noun
A person who believes in or advocates the use of light as a means of artistic expression, especially in painting.
“The museum displayed works by 19th-century luminists who experimented with light and shadow in their paintings.”
2. adjective
Relating to or characterized by the use of light as a means of artistic expression.
“The artist’s use of luminist techniques created a dreamlike atmosphere in her latest installation.”