diff --git a/lib/semantic/ansi_formatter.rb b/lib/semantic/ansi_formatter.rb
index 98c7fe0..74ab1eb 100644
--- a/lib/semantic/ansi_formatter.rb
+++ b/lib/semantic/ansi_formatter.rb
@@ -125,13 +125,16 @@ module Semantic
       log
     end
 
-    def draw_fatal(char = CHAR_FATAL)   = BG_MAGENTA + BOLD + TEXT_WHITE + char + CLEAR
-    def origin                          = colorize(centerize(log.name), TEXT_CYAN)
-    def build_prefix(char)              = "#{tags} #{origin} ╣#{colorize(char)}╠  "
-    def build_terminus                  = "#{tags} #{origin} #{TERMINUS_STRING}  "
-
+    def draw_fatal(char = CHAR_FATAL) = BG_MAGENTA + BOLD + TEXT_WHITE + char + CLEAR
+    def build_prefix(char) = "#{tags} #{origin} ╣#{colorize(char)}╠  "
+    def build_terminus = "#{tags} #{origin} #{TERMINUS_STRING}  "
     def centerize(text, max_length = CENTER_SIZE) = text.reverse.truncate(max_length).reverse.center(max_length)
 
+    def origin
+      taint = log.name.include?('_') ? TEXT_GRAY_400 : TEXT_CYAN
+      colorize(centerize(log.name), taint)
+    end
+
     def stackisize(items)
       return '' if items.empty?