diff --git a/build.gradle.kts b/build.gradle.kts
index cf08ddc..b888f12 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -5,7 +5,7 @@ plugins {
 
 qupathExtension {
 	name = "qupath-extension-training"
-	version = "0.1.0-SNAPSHOT"
+	version = "0.1.0-rc2"
 	group = "io.github.qupath"
 	description = "A QuPath extension to help learn how to use the software"
 	automaticModule = "qupath.extension.training"
diff --git a/src/main/java/qupath/fx/controls/tour/CssHighlight.java b/src/main/java/qupath/fx/controls/tour/CssHighlight.java
index 2a67026..04bf4ed 100644
--- a/src/main/java/qupath/fx/controls/tour/CssHighlight.java
+++ b/src/main/java/qupath/fx/controls/tour/CssHighlight.java
@@ -2,7 +2,6 @@
 
 import javafx.scene.Node;
 import javafx.stage.Window;
-import qupath.ext.training.ui.tour.GuiTourCommand;
 import qupath.fx.utils.FXUtils;
 
 import java.util.ArrayList;
@@ -14,7 +13,7 @@
 class CssHighlight implements TourHighlight {
 
     private static final String HIGHLIGHT_CLASS = "tour-highlight-node";
-    private static final String stylesheet = GuiTourCommand.class.getClassLoader().getResource("css/tour.css").toExternalForm();
+    private static final String stylesheet = CssHighlight.class.getClassLoader().getResource("css/tour.css").toExternalForm();
 
     private final List<Node> currentNodes = new ArrayList<>();
 
diff --git a/src/main/java/qupath/fx/controls/tour/GuiTourSkin.java b/src/main/java/qupath/fx/controls/tour/GuiTourSkin.java
index e137bb8..ce0b73e 100644
--- a/src/main/java/qupath/fx/controls/tour/GuiTourSkin.java
+++ b/src/main/java/qupath/fx/controls/tour/GuiTourSkin.java
@@ -20,9 +20,9 @@
  */
 public class GuiTourSkin extends SkinBase<GuiTour> {
 
-    private Pagination pagination;
+    private final Pagination pagination;
 
-    private TourHighlight highlight;
+    private final TourHighlight highlight;
 
     /**
      * Constructor for all SkinBase instances.
diff --git a/src/main/java/qupath/fx/controls/tour/OverlayHighlight.java b/src/main/java/qupath/fx/controls/tour/OverlayHighlight.java
index 5099d44..a89677f 100644
--- a/src/main/java/qupath/fx/controls/tour/OverlayHighlight.java
+++ b/src/main/java/qupath/fx/controls/tour/OverlayHighlight.java
@@ -15,7 +15,6 @@
 import javafx.stage.StageStyle;
 import javafx.stage.Window;
 import javafx.util.Duration;
-import qupath.ext.training.ui.tour.GuiTourCommand;
 import qupath.fx.utils.FXUtils;
 
 import java.util.List;
@@ -116,7 +115,7 @@ private boolean initialize(Window owner) {
         stage.getProperties().put("_INSTRUCTION_HIGHLIGHT", true);
         stage.setScene(scene);
 
-        scene.getStylesheets().add(GuiTourCommand.class.getClassLoader().getResource("css/tour.css").toExternalForm());
+        scene.getStylesheets().add(OverlayHighlight.class.getClassLoader().getResource("css/tour.css").toExternalForm());
 
         this.rectangle = rect;
         this.stage = stage;