The palette based on Metro colors (https://www.materialui.co/metrocolors).
palette_metro(palette = "complement", reverse = FALSE, ...)
Character name of palette. Can be "full", "ice", "rainbow", "complement", or "contrast".
Boolean indicating whether the palette should be reversed.
Additional arguments to pass to colorRampPalette()
.
This function is usually not called directly, but from within
scale_color_metro()
.