I am mapping annual precipitation in the USA, but the high values (blue) are so extreme that the rest of the map is not very informative.
I'm currently using scale_fill_viridis_c(direction = -1, na.value = NA) to generate the fill scale for the map. How can I "skew" the color scale to make this map more informative? In other words, how can the blue colors of the scale cover more values, leaving more color range for the rest of the range?
