. "". . "chscoop(t)*chase(t, names=scoop, ontime=.2, offset=.1, random=1)". "ch1(t)*chase(t, names=back, ontime=.2, offset=.1)". . "redblue". . "redblue(t)". . "bluered". . "bluered(t)". . . . . . "bredc". . "bredc(t)".