If you see below, I would like to create features from the empty space. What is the easiest way to complete this? The freehand tool was sloppy and difficult.
I am using ArcMap 10.2. I have a Basic License, but my company has Advanced available if needed.
The colored areas are part of one feature class, and I would like to include the empty areas as part of that feature class. It can be either one feature or many.