Running examples in ‘jamba-Ex.R’ failed
The error most likely occurred in:

> ### Name: kable_coloring
> ### Title: Extend kableExtra colorization of 'Rmarkdown' tables
> ### Aliases: kable_coloring
> 
> ### ** Examples
> 
> ## Don't show: 
> if (all(check_pkg_installed(c("circlize", "kableExtra")))) (if (getRversion() >= "3.4") withAutoprint else force)({ # examplesIf
+ ## End(Don't show)
+ expt_df <- data.frame(
+    Sample_ID="",
+    Treatment=rep(c("Vehicle", "Dex"), each=6),
+    Genotype=rep(c("Wildtype", "Knockout"), each=3),
+    Rep=paste0("rep", c(1:3)))
+ expt_df$Sample_ID <- pasteByRow(expt_df[, 2:4])
+ 
+ # define colors
+ colorSub <- c(Vehicle="palegoldenrod",
+    Dex="navy",
+    Wildtype="gold",
+    Knockout="firebrick",
+    nameVector(
+       color2gradient("grey48", n=3, dex=10),
+       rep("rep", 3),
+       suffix=""),
+    nameVector(
+       color2gradient(n=3,
+          c("goldenrod1", "indianred3", "royalblue3", "darkorchid4")),
+       expt_df$Sample_ID))
+ kbl <- kable_coloring(
+    expt_df,
+    caption="Experiment design table showing categorical color assignment.",
+    colorSub)
+ # Note that the HTML table is rendered in 'Rmarkdown', not pkgdown
+ kbl
+ 
+ # return_type="data.frame" is a data.frame with HTML contents
+ kdf3 <- kable_coloring(
+    return_type="data.frame",
+    df=expt_df,
+    colorSub=colorSub)
+ kdf3;
+ ## Don't show: 
+ }) # examplesIf
> expt_df <- data.frame(Sample_ID = "", Treatment = rep(c("Vehicle", "Dex"), 
+     each = 6), Genotype = rep(c("Wildtype", "Knockout"), each = 3), Rep = paste0("rep", 
+     c(1:3)))
> expt_df$Sample_ID <- pasteByRow(expt_df[, 2:4])
> colorSub <- c(Vehicle = "palegoldenrod", Dex = "navy", Wildtype = "gold", 
+     Knockout = "firebrick", nameVector(color2gradient("grey48", n = 3, dex = 10), 
+         rep("rep", 3), suffix = ""), nameVector(color2gradient(n = 3, c("goldenrod1", 
+         "indianred3", "royalblue3", "darkorchid4")), expt_df$Sample_ID))
> kbl <- kable_coloring(expt_df, caption = "Experiment design table showing categorical color assignment.", 
+     colorSub)
Error in kable_coloring(expt_df, caption = "Experiment design table showing categorical color assignment.",  : 
  kable_coloring() requires the kableExtra package.
Calls: <Anonymous> ... source -> withVisible -> eval -> eval -> kable_coloring
Execution halted
Ran 3/3 deferred expressions