How to set background colors for the cells of multiple columns based on string contents

[ahbon123]

Hello, say I have a small dataset as follows:

library(gt)
library(tidyverse)

id <- c(1,2,3,4,5)
res1 <- c("true", "true", "false", "true", "false")
res2 <- c("false", NA, NA, "true", "true")
df <- data.frame(id, res1, res2)

df %>% 
  gt()

For columns res1 and res2, let's say if value content are trues, I'll need to highlight that cell with red background color, if falses, highlight with green color, for other cases, keep their colors as original.

Is it possible to achieve that using gt package?

[rich-iannone]

We need an easier way to set basic style attributes based on values. I think a new function for this should be the way to do it. The sub_values() function provides a nice (and forgiving) way to target values so I believe the new function ought to be modeled on that.