| adjust.brightness | R Documentation | 
Select suitable colors for highlighting plots.
adjust.brightness(rgb.in, percent = 10)
rgb.in | 
 
  | 
percent | 
 the degree to which input color will be modified/brightened  | 
hex hex code for new color
(rgb.in <- c(col2rgb("red")))
adjust.brightness(rgb.in, percent = 10)
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