dino/main/data/conversation_list_titlebar_csd.ui

<?xml version="1.0" encoding="UTF-8"?>
<interface>
    <template class="DinoUiConversationListTitlebarCsd" parent="GtkHeaderBar">
        <property name="hexpand">False</property>
        <property name="show_close_button">True</property>
        <property name="visible">True</property>
        <style>
            <class name="dino-left"/>
        </style>
        <child>
            <object class="GtkMenuButton" id="add_button">
                <property name="tooltip_text" translatable="yes">Start Conversation</property>
                <property name="visible">True</property>
                <child>
                    <object class="GtkImage">
                        <property name="visible">True</property>
                        <property name="icon-name">list-add-symbolic</property>
                        <property name="icon-size">1</property>
                    </object>
                </child>
            </object>
            <packing>
                <property name="pack_type">start</property>
            </packing>
        </child>
        <child>
            <object class="GtkMenuButton" id="menu_button">
                <property name="visible">True</property>
                <child>
                    <object class="GtkImage">
                        <property name="visible">True</property>
                        <property name="icon-name">open-menu-symbolic</property>
                        <property name="icon-size">1</property>
                    </object>
                </child>
            </object>
            <packing>
                <property name="pack_type">end</property>
            </packing>
        </child>
    </template>
</interface>