To dream of a photography dark room represents your deep concern that expectations or impressions are kept. It may also reflect your concern about keeping a promise or making sure a situation is remembered positively. Negatively, may represent a fear of embarrassing yourself not keeping up an impression you’ve made on someone.
To dream of being in a dark or poorly lit room may represent a dangerous possibility in your life. A situation that you don’t understand or are afraid of. Alternatively, may represent a situation that confuses you or leaves you with little help. Having to do something with few resources or information.