diff --git a/data/icons/dock-left-symbolic.svg b/data/icons/dock-left-symbolic.svg
new file mode 100644
index 0000000..3c51520
--- /dev/null
+++ b/data/icons/dock-left-symbolic.svg
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" height="16px" viewBox="0 0 16 16" width="16px"><g fill="#222222"><path d="m 6.5 14 v -12 h -5 v 12 z m 0 0" fill-opacity="0.35"/><path d="m 3 1 c -1.644531 0 -3 1.355469 -3 3 v 8 c 0 1.644531 1.355469 3 3 3 h 10 c 1.644531 0 3 -1.355469 3 -3 v -8 c 0 -1.644531 -1.355469 -3 -3 -3 z m 0 2 h 10 c 0.570312 0 1 0.429688 1 1 v 8 c 0 0.570312 -0.429688 1 -1 1 h -10 c -0.570312 0 -1 -0.429688 -1 -1 v -8 c 0 -0.570312 0.429688 -1 1 -1 z m 0 0"/><path d="m 6 2 h 1 v 12 h -1 z m 0 0"/></g></svg>
diff --git a/src/main_window/window.blp b/src/main_window/window.blp
index 9a2ab85..4b0a2d2 100644
--- a/src/main_window/window.blp
+++ b/src/main_window/window.blp
@@ -3,18 +3,23 @@ using Adw 1;
 
 template $WarehouseWindow: Adw.ApplicationWindow {
     title: "Warehouse";
+    // default-width: 240;
+    default-width: 865;
     Adw.Breakpoint main_breakpoint {
-        condition ("max-width: 865")
+        condition ("min-width: 865")
 
         setters {
-            main_split.collapsed: true;
-            main_split.max-sidebar-width: 280;
+            main_split.collapsed: false;
+            main_split.max-sidebar-width: 999999999;
         }
     }
     content:
         Adw.OverlaySplitView main_split {
+            collapsed: true;
+            show-sidebar: true;
             sidebar-width-fraction: 0.2;
-            max-sidebar-width: 999999999;
+            // max-sidebar-width: 280;
+            min-sidebar-width: 250;
             sidebar:
                 Adw.NavigationPage {
                     title: "Warehouse";
@@ -23,7 +28,7 @@ template $WarehouseWindow: Adw.ApplicationWindow {
                         Adw.HeaderBar header_bar {
                             [start]
                             Button sidebar_button {
-                                label: "SB";
+                                icon-name: "dock-left-symbolic";
                             }
                             [end]
                             MenuButton main_menu {
diff --git a/src/warehouse.gresource.xml b/src/warehouse.gresource.xml
index 7bf11fc..ca66e41 100644
--- a/src/warehouse.gresource.xml
+++ b/src/warehouse.gresource.xml
@@ -32,5 +32,6 @@
     <file preprocess="xml-stripblanks" alias="left-large-symbolic.svg">../data/icons/left-large-symbolic.svg</file>
     <file preprocess="xml-stripblanks" alias="arrow-turn-left-down-symbolic.svg">../data/icons/arrow-turn-left-down-symbolic.svg</file>
     <file preprocess="xml-stripblanks" alias="arrow-circular-top-right-symbolic.svg">../data/icons/arrow-circular-top-right-symbolic.svg</file>
+    <file preprocess="xml-stripblanks" alias="dock-left-symbolic.svg">../data/icons/dock-left-symbolic.svg</file>
   </gresource>
 </gresources>