diff -r 2a82462276db -r 7eadccd4392c src/Pure/PIDE/rendering.scala
--- a/src/Pure/PIDE/rendering.scala	Sun Mar 15 11:38:36 2020 +0100
+++ b/src/Pure/PIDE/rendering.scala	Sun Mar 15 11:55:16 2020 +0100
@@ -209,7 +209,7 @@
       Markup.BAD)
 
   val warning_elements = Markup.Elements(Markup.WARNING, Markup.LEGACY)
-  val error_elements = Markup.Elements(Markup.ERROR)
+  val error_elements = Markup.Elements(Markup.ERROR, Markup.BAD)
 
   val caret_focus_elements = Markup.Elements(Markup.ENTITY)