+cmpArrow.item["w"] := "{u+25b2}" ; (▲) black up-pointing triangle
+cmpArrow.item["a"] := "{u+25c0}" ; (◀) black left-pointing triangle
+cmpArrow.item["s"] := "{u+25bc}" ; (▼) black down-pointing triangle
+cmpArrow.item["d"] := "{u+25b6}" ; (▶) black right-pointing triangle
+cmpArrow.item["i"] := "{u+25b3}" ; (△) white up-pointing triangle
+cmpArrow.item["j"] := "{u+25c1}" ; (◁) white left-pointing triangle
+cmpArrow.item["k"] := "{u+25bd}" ; (▽) white down-pointing triangle
+cmpArrow.item["l"] := "{u+25b7}" ; (▷) white right-pointing triangle