<child>
<object class="GtkBox" id="main_box">
<property name="visible">True</property>
- <property name="spacing">12</property>
+ <property name="spacing">0</property>
<child>
<object class="GtkFrame" id="sidebar_frame">
<property name="visible">True</property>
<child>
<object class="GtkBox" id="content_box">
<property name="visible">True</property>
- <property name="border_width">12</property>
+ <property name="border_width">0</property>
<property name="orientation">vertical</property>
- <property name="spacing">12</property>
+ <property name="spacing">0</property>
<child>
<object class="GtkNotebook" id="content">
<property name="visible">True</property>