"Dark areas" typically refers to places or aspects that are mysterious, unknown, or lacking clarity. It can also imply hidden or concealed information, ideas, or actions.
Sentences with «dark areas»
Try putting regular or motion - activated lights in dark areas. (aspca.org)
I like it especially for darker areas of the home that may not get the sunlight necessary for a plant. (theinspiredroom.net)
The thick column is flanked by dark areas on either side. (artefuse.com)