diff --git a/bench/generate_charts.R b/bench/generate_charts.R
index e3d5d9f..a1ca7dd 100755
--- a/bench/generate_charts.R
+++ b/bench/generate_charts.R
@@ -15,11 +15,15 @@ ggsave(gsub("log","png",args[1]), benchPlot, width=4.5, height=4.5)
 
 micro <- data.frame(read.csv(args[2]))
 micro$activity <- factor(micro$activity, levels = c("reading", "loading", "saving", "writing"))
-microPlot <- ggplot(micro) +
-  xlab("JSON value size") + ylab("Time (ms, log10)") + scale_colour_discrete(name = "Activity") + scale_shape_discrete(name = "Kind") +
-  scale_x_continuous(limits=c(0,8), breaks=c(0,2,4,6,8), labels=c("1", "4", "16", "64", "256")) +
+microPlot <- 
+  ggplot(micro, aes(x=factor(log(magnitude, base=2)), y=log(ns,base=10), color=factor(activity))) + 
+  xlab("JSON value size") + ylab("Time (ms, log10)") + 
+  scale_colour_discrete(name = "Activity") + 
+  scale_shape_discrete(name = "Kind") + 
+  scale_x_discrete(labels=c("1", "2", "4", "8", "16", "32", "64", "128", "256")) + 
   scale_y_continuous(breaks=c(0,2,4,6,8,10),labels=c("0ms", "0.01ms", "0.1ms", "1ms", "10ms", "100ms")) +
-  geom_point(aes(log(magnitude,base=2),log(ns,base=10),colour=activity,shape=kind)) +
-  facet_wrap( ~ direction, labeller = as_labeller(c(`deep` = "Deep { { ... } }", `wide` = "Wide { ..., ... }")))
+  geom_boxplot(outlier.size=0.3) + 
+  facet_wrap( ~ direction, labeller = as_labeller(c(`deep` = "Deep { { ... } }", `wide` = "Wide { ..., ... }")))  +
+  theme(legend.position="bottom", legend.title=element_blank())
 
 ggsave(gsub("log","png",args[2]), microPlot, width=4.5, height=4.5)
\ No newline at end of file