Note: Not available with Hard Edges.
Use Highlight 
to increase the lightness of an area of the picture, and make it more prominent.
Highlight has soft edges.The pixels closer to the center of the brush are affected more than those around the edge.
To use Highlight
-
In the Paint Tab
of the Design Panel 
, click Highlight 
. -
Choose Paint > Highlight.
Highlight an Area of the Picture
-
Click the Highlight icon
.
-
Change the line width and style if desired by selecting a Brush Shape, Size and Angle. See Brush Types.
-
Drag across the work area from the desired start point to the desired end point. That part of the picture is highlighted (brightened).
-
Lift the pen or release the mouse button to complete the action.
-
Each time you drag and release a new area is affected, until another feature is selected.