diff --git a/private_dot_local/private_bin/executable_print-shell-colors.sh b/private_dot_local/private_bin/executable_print-shell-colors.sh
index 6bf1b72..45a8235 100755
--- a/private_dot_local/private_bin/executable_print-shell-colors.sh
+++ b/private_dot_local/private_bin/executable_print-shell-colors.sh
@@ -7,3 +7,17 @@ for j in {1..16}; do
   done
   echo
 done
+
+awk 'BEGIN{
+    s="/\\/\\/\\/\\/\\"; s=s s s s s s s s;
+    for (colnum = 0; colnum<80; colnum++) {
+        r = 255-(colnum*255/79);
+        g = (colnum*510/79);
+        b = (colnum*255/79);
+        if (g>255) g = 510-g;
+        printf "\033[48;2;%d;%d;%dm", r,g,b;
+        printf "\033[38;2;%d;%d;%dm", 255-r,255-g,255-b;
+        printf "%s\033[0m", substr(s,colnum+1,1);
+    }
+    printf "\n";
+}'
\ No newline at end of file