main color to render bars and dark dots
main color used when a selection is present
main opacity used when a selection is present
color for the hover hint rects for set combinations
color for dots that indicate it is not a member
main opacity
list of queries as an alternative to provide a single selection
color used to highlight the selection
main color to render text
mouse click listener, triggered when the user is clicking on a set (combination)
mouse hover listener, triggered when the user is over a set (combination)
color used to highlight alternating background in the sets for easier comparison set to false to disable alternating pattern