diff --git a/src/Tools/tim_tool/ui/tab/main-tab.slint b/src/Tools/tim_tool/ui/tab/main-tab.slint
index 3501f47e..aa2b4202 100644
--- a/src/Tools/tim_tool/ui/tab/main-tab.slint
+++ b/src/Tools/tim_tool/ui/tab/main-tab.slint
@@ -184,9 +184,10 @@ export component MainTab inherits Rectangle {
                             height: 128px;
                             background: #A0A0A0;
                             cur_sel_img := Image {
-                                width:     128px;
-                                height:    128px;
-                                image-fit: contain;
+                                width:           128px;
+                                height:          128px;
+                                image-fit:       contain;
+                                image-rendering: pixelated;
                             }
                         }
                         HorizontalLayout {