diff --git a/data/extensions/aseprite-theme/theme.xml b/data/extensions/aseprite-theme/theme.xml
index 805784f87..3fbffdf72 100644
--- a/data/extensions/aseprite-theme/theme.xml
+++ b/data/extensions/aseprite-theme/theme.xml
@@ -1111,5 +1111,6 @@
         <style id="standard_brush" extends="buttonset_item_icon_mono" width="17" height="19" />
         <style id="outline_cell" extends="buttonset_item_icon" width="17" height="19" />
         <style id="ani_button" extends="buttonset_item_icon" width="17" />
+        <style id="multi_window_item" extends="buttonset_item_icon" width="17" height="17" />
     </styles>
 </theme>
diff --git a/data/widgets/options.xml b/data/widgets/options.xml
index df9f258b3..9b7da391c 100644
--- a/data/widgets/options.xml
+++ b/data/widgets/options.xml
@@ -35,8 +35,8 @@
             <label text="@.ui_windows" />
             <hbox>
               <buttonset columns="2" id="ui_windows">
-                <item icon="one_win_icon" tooltip="@.one_win" tooltip_dir="bottom" />
-                <item icon="multi_win_icon" tooltip="@.multi_win" tooltip_dir="bottom" />
+                <item icon="one_win_icon" tooltip="@.one_win" tooltip_dir="bottom" style="multi_window_item" />
+                <item icon="multi_win_icon" tooltip="@.multi_win" tooltip_dir="bottom" style="multi_window_item" />
               </buttonset>
               <hbox id="theme_variants">
                 <label text="@.theme_mode" />