diff --git a/_common.R b/_common.R
index 8d192e8..33f3614 100644
--- a/_common.R
+++ b/_common.R
@@ -3,7 +3,7 @@ set.seed(1014)
 knitr::opts_chunk$set(
   comment = "#>",
   collapse = TRUE,
-  cache = TRUE,
+  # cache = TRUE,
   out.width = "70%",
   fig.align = 'center',
   fig.width = 6,
@@ -13,5 +13,8 @@ knitr::opts_chunk$set(
 
 options(dplyr.print_min = 6, dplyr.print_max = 6)
 
-# Supress crayon output
-options(crayon.enabled = FALSE)
+# Activate crayon output
+options(
+  crayon.enabled = TRUE,
+  pillar.bold = TRUE
+)