added full_width and color warning
diff --git a/R/row_spec.R b/R/row_spec.R
index 92d8150..d056c4a 100644
--- a/R/row_spec.R
+++ b/R/row_spec.R
@@ -248,12 +248,22 @@
     })
   }
   if (!is.null(color)) {
+    if (table_info$tabular == "tabu") {
+      warning("Setting full_width = TRUE will turn the table into a tabu ",
+              "environment where colors are not really easily configable ",
+              "with this package. Please consider turn off full_width.")
+    }
     new_row <- lapply(new_row, function(x) {
       x <- clear_color_latex(x)
       paste0("\\\\textcolor", latex_color(color), "\\{", x, "\\}")
     })
   }
   if (!is.null(background)) {
+    if (table_info$tabular == "tabu") {
+      warning("Setting full_width = TRUE will turn the table into a tabu ",
+              "environment where colors are not really easily configable ",
+              "with this package. Please consider turn off full_width.")
+    }
     new_row <- lapply(new_row, function(x) {
       x <- clear_color_latex(x, background = TRUE)
       paste0("\\\\cellcolor", latex_color(background), "\\{", x, "\\}")