Nikon D780 DSLR Camera (Body Only) - Manual (Page 661)

615 Menu Guide > A Custom Settings
Choose whether to display a grid for reference when framing
shots.
When focus peaking is enabled during live view photography in
manual focus mode, objects that are in focus are indicated by
colored outlines in the display. You can choose the color.
d10: Framing Grid Display
G button
U A Custom Settings menu
d11: Peaking Highlights
G button
U A Custom Settings menu
Option Description
[ Peaking level ]
Choose from [ 3 (high sensitivity) ], [ 2 (standard) ],
[ 1 (low sensitivity) ], and [ Off ]. The higher the value,
the greater the depth that will be shown as being in
focus. Focus peaking is not performed in special effects
modes.
[ Peaking
highlight
color ]
Choose a peaking highlight color from [ Red ], [ Yellow ],
[ Blue ], and [ White ].