hadley/ggplot2 — pull request #700 by wch (2012-10-23 20:25:56+00:00)
Title: Theme classic

This is from @dkahle's suggestion in #641.

This example illustrates the output:

```
theme_classic <- function(base_size = 12, base_family = ""){
theme_bw(base_size = base_size, base_family = base_family) %+replace%
theme(
panel.border = element_blank(),
axis.line = element_line(colour = "black"),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank()
)
}

qplot(displ, hwy, data = mpg, colour=class) + theme_classic()
```