diff --git a/client/src/main/java/ctbrec/ui/tabs/ThumbCell.java b/client/src/main/java/ctbrec/ui/tabs/ThumbCell.java
index 126b9816..1930253c 100644
--- a/client/src/main/java/ctbrec/ui/tabs/ThumbCell.java
+++ b/client/src/main/java/ctbrec/ui/tabs/ThumbCell.java
@@ -13,6 +13,7 @@ import ctbrec.ui.CamrecApplication;
 import ctbrec.ui.SiteUiFactory;
 import ctbrec.ui.StreamSourceSelectionDialog;
 import ctbrec.ui.action.PlayAction;
+import ctbrec.ui.controls.Dialogs;
 import ctbrec.ui.controls.PausedIndicator;
 import ctbrec.ui.controls.StreamPreview;
 import javafx.animation.FadeTransition;
@@ -22,7 +23,6 @@ import javafx.animation.Transition;
 import javafx.application.Platform;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.SimpleBooleanProperty;
-import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.collections.ObservableList;
 import javafx.geometry.Insets;
@@ -236,7 +236,7 @@ public class ThumbCell extends StackPane {
         play.setStyle("-fx-background-color: black;");
         previewTrigger.getChildren().add(play);
 
-        Circle clip = new Circle(s / 2);
+        Circle clip = new Circle(s / 2.0);
         clip.setTranslateX(clip.getRadius());
         clip.setTranslateY(clip.getRadius());
         previewTrigger.setClip(clip);
@@ -287,8 +287,7 @@ public class ThumbCell extends StackPane {
                 resolution = resolutionCache.get(model);
                 resolutionBackgroundColor = resolutionOnlineColor;
                 final int w = resolution[1];
-                String width = w != Integer.MAX_VALUE ? Integer.toString(w) : "HD";
-                tagText = width;
+                tagText = w != Integer.MAX_VALUE ? Integer.toString(w) : "HD";
                 if (w == 0) {
                     State state = model.getOnlineState(false);
                     tagText = state.name();
@@ -364,7 +363,7 @@ public class ThumbCell extends StackPane {
                             setThumbWidth(Config.getInstance().getSettings().thumbWidth);
                         });
                     } else {
-                        img.progressProperty().addListener((ChangeListener<Number>) (observable, oldValue, newValue) -> {
+                        img.progressProperty().addListener((observable, oldValue, newValue) -> {
                             if (newValue.doubleValue() == 1.0) {
                                 iv.setImage(img);
                                 setThumbWidth(Config.getInstance().getSettings().thumbWidth);
@@ -403,13 +402,13 @@ public class ThumbCell extends StackPane {
 
     private void setRecording(boolean recording) {
         this.recording = recording;
+        Color c;
         if (recording) {
-            Color c = mouseHovering ? colorHighlight : colorRecording;
-            nameBackground.setFill(c);
+            c = mouseHovering ? colorHighlight : colorRecording;
         } else {
-            Color c = mouseHovering ? colorHighlight : colorNormal;
-            nameBackground.setFill(c);
+            c = mouseHovering ? colorHighlight : colorNormal;
         }
+        nameBackground.setFill(c);
 
         updateRecordingIndicator();
     }
@@ -430,7 +429,7 @@ public class ThumbCell extends StackPane {
         boolean selectSource = Config.getInstance().getSettings().chooseStreamQuality;
         if (selectSource && start) {
             Function<Model, Void> onSuccess = modl -> {
-                startStopActionAsync(modl, start);
+                startStopActionAsync(modl, true);
                 return null;
             };
             Function<Throwable, Void> onFail = throwable -> {
@@ -484,13 +483,7 @@ public class ThumbCell extends StackPane {
                 }
             } catch (Exception e1) {
                 LOG.error(COULDNT_START_STOP_RECORDING, e1);
-                Platform.runLater(() -> {
-                    Alert alert = new AutosizeAlert(Alert.AlertType.ERROR, getScene());
-                    alert.setTitle(ERROR);
-                    alert.setHeaderText(COULDNT_START_STOP_RECORDING);
-                    alert.setContentText("I/O error while starting/stopping the recording: " + e1.getLocalizedMessage());
-                    alert.showAndWait();
-                });
+                Dialogs.showError(getScene(), COULDNT_START_STOP_RECORDING, "I/O error while starting/stopping the recording: ", e1);
             } finally {
                 setCursor(Cursor.DEFAULT);
             }
@@ -507,13 +500,7 @@ public class ThumbCell extends StackPane {
                     if (followed) {
                         return true;
                     } else {
-                        Platform.runLater(() -> {
-                            Alert alert = new AutosizeAlert(Alert.AlertType.ERROR, getScene());
-                            alert.setTitle(ERROR);
-                            alert.setHeaderText("Couldn't follow model");
-                            alert.setContentText("");
-                            alert.showAndWait();
-                        });
+                        Dialogs.showError(getScene(), "Couldn't follow model", "", null);
                         return false;
                     }
                 } else {
@@ -523,25 +510,14 @@ public class ThumbCell extends StackPane {
                         Platform.runLater(() -> thumbCellList.remove(ThumbCell.this));
                         return true;
                     } else {
-                        Platform.runLater(() -> {
-                            Alert alert = new AutosizeAlert(Alert.AlertType.ERROR, getScene());
-                            alert.setTitle(ERROR);
-                            alert.setHeaderText("Couldn't unfollow model");
-                            alert.setContentText("");
-                            alert.showAndWait();
-                        });
+                        Dialogs.showError(getScene(), "Couldn't unfollow model", "", null);
                         return false;
                     }
                 }
             } catch (Exception e1) {
                 LOG.error("Couldn't follow/unfollow model {}", model.getName(), e1);
-                Platform.runLater(() -> {
-                    Alert alert = new AutosizeAlert(Alert.AlertType.ERROR, getScene());
-                    alert.setTitle(ERROR);
-                    alert.setHeaderText("Couldn't follow/unfollow model");
-                    alert.setContentText("I/O error while following/unfollowing model " + model.getName() + ": " + e1.getLocalizedMessage());
-                    alert.showAndWait();
-                });
+                String msg = "I/O error while following/unfollowing model " + model.getName() + ": ";
+                Dialogs.showError(getScene(), "Couldn't follow/unfollow model", msg, e1);
                 return false;
             } finally {
                 setCursor(Cursor.DEFAULT);
@@ -616,8 +592,8 @@ public class ThumbCell extends StackPane {
     public void setThumbWidth(int width) {
         int height = (int) (width * imgAspectRatio);
         setSize(width, height);
-        iv.prefHeight(height);
-        iv.prefWidth(width);
+        iv.prefHeight(width);
+        iv.prefWidth(height);
     }
 
     private void setSize(int w, int h) {
@@ -638,8 +614,8 @@ public class ThumbCell extends StackPane {
         topic.prefHeight(getHeight() - 25);
         topic.maxHeight(getHeight() - 25);
         int margin = 4;
-        topic.maxWidth(w - margin * 2);
-        topic.setWrappingWidth(w - margin * 2);
+        topic.maxWidth(w - margin * 2.0);
+        topic.setWrappingWidth(w - margin * 2.0);
 
         streamPreview.resizeTo(w, h);