diff --git a/src/Tools/tim_tool/ui/tab/main-tab.slint b/src/Tools/tim_tool/ui/tab/main-tab.slint
index d252e3ac..00c139b1 100644
--- a/src/Tools/tim_tool/ui/tab/main-tab.slint
+++ b/src/Tools/tim_tool/ui/tab/main-tab.slint
@@ -1,5 +1,5 @@
 import { VRAMArea } from "../vram-components.slint";
-import { Button, ComboBox, GroupBox, StandardListView, LineEdit, ScrollView } from "std-widgets.slint";
+import { Button, ComboBox, GroupBox, StandardListView, LineEdit, ScrollView, Slider } from "std-widgets.slint";
 
 struct VRAMImage {
     img:           image,
@@ -10,7 +10,7 @@ struct VRAMImage {
 }
 
 export component MainTab inherits Rectangle {
-    property        <int>                    test_scale: 4;
+    property        <int>                    test_scale: 1;
     in-out property <image>                  vram_bg;
     in-out property <[StandardListViewItem]> vram_files:  [];
     in-out property <[VRAMImage]>            vram_images: [];
@@ -108,7 +108,26 @@ export component MainTab inherits Rectangle {
             }
             HorizontalLayout {
                 padding: 4px;
-                
+                VerticalLayout {
+                    alignment: center;
+                    padding: 4px;
+                    Text {
+                        text: "Scale: " + slider.value;
+                    }    
+                }
+                slider := Slider {
+                    minimum: 100.0;
+                    maximum: 400.0;
+                    step:    1.0;
+                    value:   100.0;
+
+                    changed(value) => {
+                        root.test_scale = value/100.0;
+                    }
+                }
+            }
+            HorizontalLayout {
+                padding: 4px;
                 GroupBox {
                     title: "Added files";
                     VerticalLayout {