Using `mpg` and the 'ggplot2' package, reproduce the graph studied in session 2, 3.1: color mapping.
Modify the colors representing the class of cars with the palettes `Dark2` of [RColorBrewer](https://www.datanovia.com/en/fr/blog/palette-de-couleurs-rcolorbrewer-de-a-a-z/), then `MononokeMedium` from [Ghibli](https://github.com/ewenme/ghibli).
<details><summary>Solution</summary>
<p>
```{r mpg_color1}
ggplot(data = mpg, mapping = aes(x = displ, y = hwy, color = class)) +
geom_point() +
scale_color_brewer(palette = "Dark2")
```
```{r mpg_color2}
ggplot(data = mpg, mapping = aes(x = displ, y = hwy, color = class)) +
