diff --git a/src/org/ice1000/tt/editing/voile/editing.kt b/src/org/ice1000/tt/editing/voile/editing.kt
index 869c1be..ce13649 100644
--- a/src/org/ice1000/tt/editing/voile/editing.kt
+++ b/src/org/ice1000/tt/editing/voile/editing.kt
@@ -1,14 +1,16 @@
 package org.ice1000.tt.editing.voile
 
 import com.intellij.lang.BracePair
+import com.intellij.lang.annotation.AnnotationHolder
+import com.intellij.lang.annotation.Annotator
 import com.intellij.lang.cacheBuilder.DefaultWordsScanner
+import com.intellij.psi.PsiElement
 import com.intellij.psi.tree.TokenSet
 import org.ice1000.tt.editing.TTBraceMatcher
 import org.ice1000.tt.editing.TTCommenter
 import org.ice1000.tt.editing.TTFindUsagesProvider
 import org.ice1000.tt.psi.redprl.redPrlLexer
-import org.ice1000.tt.psi.voile.VoileTokenType
-import org.ice1000.tt.psi.voile.VoileTypes
+import org.ice1000.tt.psi.voile.*
 
 class VoileCommenter : TTCommenter() {
 	override fun getLineCommentPrefix() = "// "
@@ -26,3 +28,18 @@ class VoileBraceMatcher : TTBraceMatcher() {
 class VoileFindUsagesProvider : TTFindUsagesProvider() {
 	override fun getWordsScanner() = DefaultWordsScanner(redPrlLexer(), VoileTokenType.IDENTIFIERS, VoileTokenType.COMMENTS, TokenSet.EMPTY)
 }
+
+class VoileAnnotator : Annotator {
+	override fun annotate(element: PsiElement, holder: AnnotationHolder) {
+		when (element) {
+			is VoileNameDeclMixin -> nameDeclMixin(element, holder)
+		}
+	}
+
+	private fun nameDeclMixin(element: VoileNameDeclMixin, holder: AnnotationHolder) {
+		val parent = element.parent ?: return
+		if (parent is VoileImplementation || parent is VoileSignature) {
+			holder.createInfoAnnotation(element, null).textAttributes = VoileHighlighter.FUNCTION_NAME
+		}
+	}
+}