TT.grid(geo = geo,
at = NULL,
text.tol = NULL,
text.sum = NULL,
blr.clock = NULL,
grid.col = NULL,
grid.lty = NULL,
lwd.axis = NULL,
tri.sum.tst = NULL,
tri.pos.tst = NULL,
class.p.bg.col = NULL,
class.p.bg.hue = NULL,
frame.bg.col = NULL,
bg = NULL,
col.axis = NULL)