diff --git a/platform/editor-ui-ex/src/com/intellij/openapi/editor/colors/ex/DefaultColorSchemesManager.java b/platform/editor-ui-ex/src/com/intellij/openapi/editor/colors/ex/DefaultColorSchemesManager.java
index 22725716a3a4..5283847ee446 100644
--- a/platform/editor-ui-ex/src/com/intellij/openapi/editor/colors/ex/DefaultColorSchemesManager.java
+++ b/platform/editor-ui-ex/src/com/intellij/openapi/editor/colors/ex/DefaultColorSchemesManager.java
@@ -80,6 +80,14 @@ public class DefaultColorSchemesManager implements PersistentStateComponent<Elem
     return Collections.unmodifiableList(mySchemes);
   }
 
+  public String[] listNames() {
+    String[] names = new String[mySchemes.size()];
+    for (int i = 0; i < names.length; i ++) {
+      names[i] = mySchemes.get(i).getName();
+    }
+    return names;
+  }
+
   @NotNull
   public DefaultColorsScheme getFirstScheme() {
     return mySchemes.get(0);
diff --git a/platform/platform-impl/src/com/intellij/openapi/editor/colors/impl/EditorColorsManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/editor/colors/impl/EditorColorsManagerImpl.java
index 858bc3f7c5dd..85d3072608f5 100644
--- a/platform/platform-impl/src/com/intellij/openapi/editor/colors/impl/EditorColorsManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/editor/colors/impl/EditorColorsManagerImpl.java
@@ -377,7 +377,9 @@ public class EditorColorsManagerImpl extends EditorColorsManager implements Pers
   public EditorColorsScheme getSchemeForCurrentUITheme() {
     String schemeName = UIUtil.isUnderDarcula() ? "Darcula" : DEFAULT_SCHEME_NAME;
     EditorColorsScheme scheme = myDefaultColorSchemeManager.getScheme(schemeName);
-    assert scheme != null : "The default scheme '" + schemeName + "' not found";
+    assert scheme != null :
+      "The default scheme '" + schemeName + "' not found, " +
+      "available schemes: " + Arrays.toString(myDefaultColorSchemeManager.listNames());
     if (((DefaultColorsScheme)scheme).hasEditableCopy()) {
       EditorColorsScheme editableCopy = getScheme(((DefaultColorsScheme)scheme).getEditableCopyName());
       if (editableCopy != null) return editableCopy;