library(DT)

data <- round(data.frame(
  x = runif(5, 0, 5),
  y = runif(5, 0, 10),
  z = runif(5, 0, 20)
), 3)

break_points <- function(x) stats::quantile(x, probs = seq(.05, .95, .05), na.rm = TRUE)
red_shade <- function(x) round(seq(255, 40, length.out = length(x) + 1), 0) %>% {paste0("rgb(255,", ., ",", ., ")")}

brks <- break_points(data)
clrs <- red_shade(brks)

#higlight whole table
datatable(data) %>% formatStyle(names(data), backgroundColor = styleInterval(brks, clrs))

#highlight by column
brks <- apply(data, 2, break_points)
clrs <- apply(brks, 2, red_shade)
dt <- datatable(data)
for(i in colnames(data)){
  dt <- dt %>% formatStyle(i, backgroundColor = styleInterval(brks[,i], clrs[,i]))
}
dt

#highlight by row
???  No clude whow to do...