MainWindow.glade (Código)

<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.38.2 -->
<interface>
    <requires lib="gtk+" version="3.24"/>
    <object class="GtkApplicationWindow" id="MainWindow">
        <property name="can_focus">False</property>
        <property name="title" translatable="yes">Gtk.Notebook</property>
        <property name="default_width">683</property>
        <property name="default_height">384</property>
        <property name="icon">../../../assets/icons/icon.png</property>
        <child>
            <object class="GtkNotebook">
                <property name="visible">True</property>
                <property name="can_focus">True</property>
                <child>
                    <object class="GtkBox">
                        <property name="width_request">12</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="border_width">12</property>
                        <property name="orientation">vertical</property>
                        <property name="spacing">6</property>
                        <child>
                            <object class="GtkLabel">
                                <property name="visible">True</property>
                                <property name="can_focus">False</property>
                                <property name="label" translatable="yes">label 1</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">0</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkLabel">
                                <property name="visible">True</property>
                                <property name="can_focus">False</property>
                                <property name="label" translatable="yes">label 2</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">1</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkLabel">
                                <property name="visible">True</property>
                                <property name="can_focus">False</property>
                                <property name="label" translatable="yes">label 3</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">2</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkLabel">
                                <property name="visible">True</property>
                                <property name="can_focus">False</property>
                                <property name="label" translatable="yes">label 4</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">3</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkLabel">
                                <property name="visible">True</property>
                                <property name="can_focus">False</property>
                                <property name="label" translatable="yes">label 5</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">4</property>
                            </packing>
                        </child>
                    </object>
                </child>
                <child type="tab">
                    <object class="GtkLabel">
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="label" translatable="yes">Pagina 1</property>
                    </object>
                    <packing>
                        <property name="tab_fill">False</property>
                    </packing>
                </child>
                <child>
                    <object class="GtkBox">
                        <property name="width_request">12</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="border_width">12</property>
                        <property name="orientation">vertical</property>
                        <property name="spacing">6</property>
                        <child>
                            <object class="GtkButton">
                                <property name="label" translatable="yes">Botão 1</property>
                                <property name="visible">True</property>
                                <property name="can_focus">True</property>
                                <property name="receives_default">True</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">0</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkButton">
                                <property name="label" translatable="yes">Botão 2</property>
                                <property name="visible">True</property>
                                <property name="can_focus">True</property>
                                <property name="receives_default">True</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">1</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkButton">
                                <property name="label" translatable="yes">Botão 3</property>
                                <property name="visible">True</property>
                                <property name="can_focus">True</property>
                                <property name="receives_default">True</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">2</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkButton">
                                <property name="label" translatable="yes">Botão 4</property>
                                <property name="visible">True</property>
                                <property name="can_focus">True</property>
                                <property name="receives_default">True</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">3</property>
                            </packing>
                        </child>
                        <child>
                            <object class="GtkButton">
                                <property name="label" translatable="yes">Botão 5</property>
                                <property name="visible">True</property>
                                <property name="can_focus">True</property>
                                <property name="receives_default">True</property>
                            </object>
                            <packing>
                                <property name="expand">False</property>
                                <property name="fill">True</property>
                                <property name="position">4</property>
                            </packing>
                        </child>
                    </object>
                    <packing>
                        <property name="position">1</property>
                    </packing>
                </child>
                <child type="tab">
                    <object class="GtkImage">
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="icon_name">folder-documents-symbolic</property>
                        <property name="icon_size">1</property>
                    </object>
                    <packing>
                        <property name="position">1</property>
                        <property name="tab_fill">False</property>
                    </packing>
                </child>
                <child>
                    <placeholder/>
                </child>
                <child type="tab">
                    <placeholder/>
                </child>
            </object>
        </child>
        <child type="titlebar">
            <placeholder/>
        </child>
    </object>
</interface>