From b3f59396895cdf8a1b43d0b3f922861671e710a3 Mon Sep 17 00:00:00 2001
From: Daniel Schwabeneder <daniel.schwabeneder@openmailbox.org>
Date: Sat, 2 Sep 2017 22:58:26 +0200
Subject: [PATCH] make seriestype error more descriptive

---
 src/args.jl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/args.jl b/src/args.jl
index b305d613..d582af9c 100644
--- a/src/args.jl
+++ b/src/args.jl
@@ -1276,6 +1276,7 @@ end
 
 # -----------------------------------------------------------------------------
 
+has_black_border_for_default(st) = error("The seriestype attribute only accepts Symbols, you passed $st.")
 function has_black_border_for_default(st::Symbol)
     like_histogram(st) || st in (:hexbin, :bar, :shape)
 end