Nikon CoolPix S6200 Reference Manual page 126

Editing Still Images
C
Image Size
As the area to be saved is reduced, the image size (pixels) of the cropped copy is also reduced.
When the image size of the cropped copy is 320 × 240 or 160 × 120, a black frame is displayed around
the image, and the small picture icon A is displayed in the left of the monitor in playback mode.
C
More Information
See "File and Folder Names" (E77) for more information.
E20