diff --git a/images/src/org/intellij/images/actions/ToggleTransparencyChessboardAction.java b/images/src/org/intellij/images/actions/ToggleTransparencyChessboardAction.java
index 528228e66052..4e54e204b165 100644
--- a/images/src/org/intellij/images/actions/ToggleTransparencyChessboardAction.java
+++ b/images/src/org/intellij/images/actions/ToggleTransparencyChessboardAction.java
@@ -18,18 +18,22 @@ package org.intellij.images.actions;
 import com.intellij.ide.IdeBundle;
 import com.intellij.openapi.actionSystem.ActionUpdateThread;
 import com.intellij.openapi.actionSystem.AnActionEvent;
-import com.intellij.openapi.actionSystem.ToggleAction;
+import com.intellij.openapi.project.DumbAwareToggleAction;
 import org.intellij.images.options.DefaultImageEditorSettings;
 import org.intellij.images.ui.ImageComponentDecorator;
 import org.jetbrains.annotations.NotNull;
 
 /**
  * Show/hide background action.
- *
- * @author <a href="mailto:aefimov.box@gmail.com">Alexey Efimov</a>
+
  * @see ImageComponentDecorator#setTransparencyChessboardVisible
  */
-public final class ToggleTransparencyChessboardAction extends ToggleAction {
+final class ToggleTransparencyChessboardAction extends DumbAwareToggleAction {
+  @Override
+  public @NotNull ActionUpdateThread getActionUpdateThread() {
+    return ActionUpdateThread.EDT;
+  }
+
   @Override
   public boolean isSelected(@NotNull AnActionEvent e) {
     ImageComponentDecorator decorator = e.getData(ImageComponentDecorator.DATA_KEY);
@@ -52,9 +56,4 @@ public final class ToggleTransparencyChessboardAction extends ToggleAction {
     e.getPresentation().setEnabled(decorator != null && decorator.isEnabledForActionPlace(e.getPlace()));
     e.getPresentation().setText(isSelected(e) ? IdeBundle.message("action.text.hide.chessboard") : IdeBundle.message("action.text.show.chessboard"));
   }
-
-  @Override
-  public @NotNull ActionUpdateThread getActionUpdateThread() {
-    return ActionUpdateThread.EDT;
-  }
 }