ggplot2 is awesome. It enables people to easily make high quality data visualization plots. However, people who spent a lot of time with ggplot2 have love/hate relationship with the default ggplot2 theme, where a plot is on a grey background. The default ggplot2 theme is called theme_grey() or theme_gray(). In addition to the default theme,… Continue reading 8 ggplot themes to make your plots look great