NSColorWell.Style.expanded
A style that supports a color picker popover for fast interactions, and adds a dedicated button to display the color panel.
Declaration
case expandedDiscussion
This style displays a dedicated button and a rectangular area with the selected color. Clicks in the dedicated button always display the system color panel. Clicks in the color area display a popover with a color picker. If you specified a custom action using the pulldownAction and pulldownTarget properties, clicks in the color area execute your action method instead.