--- a/src/Pure/Tools/prismjs.scala Tue Feb 11 23:31:12 2025 +0100 +++ b/src/Pure/Tools/prismjs.scala Wed Feb 12 00:40:57 2025 +0100 @@ -6,8 +6,6 @@ package isabelle -import scala.collection.mutable - object Prismjs { /* component resources */