diff --git a/README.md b/README.md
index effaaf1..354cbb1 100644
--- a/README.md
+++ b/README.md
@@ -40,9 +40,9 @@ save("parabola.gp")  # => save a script file with both data and command to re-cr
 ```julia
 x = -2pi:0.1:2pi
 approx = fill(0., length(x));
-@gp t="Polynomial approximation of sin(x)"  key="opaque"
+@gp t="Polynomial approximation of sin(x)"  key="opaque" linetypes(:Blues_3)
 @gp :- "set encoding utf8" raw"""set xtics ('-π' -pi, 'π/2' -pi/2, 0, 'π/2' pi/2, 'π' pi)"""
-@gp :- xr=3.8.*[-1, 1] yr=[-1.5,1.5] 
+@gp :- xr=3.8.*[-1, 1] yr=[-1.5,1.5] "set grid"
 @gp :- x sin.(x) approx .+= x           "w filledcurve t 'n=0' lt 1"
 @gp :- x sin.(x) approx .+= -x.^3/6     "w filledcurve t 'n=1' lt 2"
 @gp :- x sin.(x) approx .+=  x.^5/120   "w filledcurve t 'n=2' lt 3"