Show interactions:  all  at least one end  both ends in window 

Track height:  pixels (range: 20 to 300, default: 150)

Draw mode:  curve  ellipse  rectangle 

Show only items with score at or above:   (range: 0 to 1000)

Shade of lowest-scoring items: • gray (11%) • gray (22%) • gray (33%) • gray (44%) • gray (55%) • gray (66%) • gray (77%) • gray (88%) • black