diff -r 6c68eff8355a -r 83584916b6d7 src/Pure/PIDE/markup.scala
--- a/src/Pure/PIDE/markup.scala	Fri Mar 21 16:42:20 2025 +0100
+++ b/src/Pure/PIDE/markup.scala	Fri Mar 21 18:37:05 2025 +0100
@@ -584,6 +584,8 @@
 
   /* messages */
 
+  val Urgent = new Properties.Boolean("urgent")
+
   val INIT = "init"
   val STATUS = "status"
   val REPORT = "report"