urho3d/Bin/Data/UI/EditorInspector_Variable.xml

<element>
    <attribute name="Name" value="VariableContainer" />
    <attribute name="Max Size" value="2147483647 17" />
    <attribute name="Layout Mode" value="Horizontal" />
    <attribute name="Layout Spacing" value="4" />
    <element type="LineEdit">
        <attribute name="Name" value="VarNameEdit" />
    </element>
    <element type="DropDownList">
        <attribute name="Name" value="NewVarDropDown" />
        <attribute name="Min Size" value="50 17" />
        <attribute name="Max Size" value="50 17" />
        <attribute name="Resize Popup" value="true" />
        <element internal="true">
            <attribute name="Is Visible" value="false" />
        </element>
        <element type="Text">
            <attribute name="Text" value="New" />
            <attribute name="Text Alignment" value="Center" />
        </element>
        <!-- Skip style processing as the purpose of below tags is to populate the content element -->
        <element type="Window" internal="true" popup="true" style="none">
            <element type="ListView" internal="true" style="none">
                <element type="BorderImage" internal="true" style="none">
                    <element internal="true" style="none">
                        <element type="Text" style="EditorEnumAttributeText">
                            <attribute name="Text" value="Int" />
                        </element>
                        <element type="Text" style="EditorEnumAttributeText">
                            <attribute name="Text" value="Bool" />
                        </element>
                        <element type="Text" style="EditorEnumAttributeText">
                            <attribute name="Text" value="Float" />
                        </element>
                        <element type="Text" style="EditorEnumAttributeText">
                            <attribute name="Text" value="String" />
                        </element>
                        <element type="Text" style="EditorEnumAttributeText">
                            <attribute name="Text" value="Vector3" />
                        </element>
                        <element type="Text" style="EditorEnumAttributeText">
                            <attribute name="Text" value="Color" />
                        </element>
                    </element>
                </element>
            </element>
        </element>
    </element>
    <element type="Button">
        <attribute name="Name" value="DeleteVarButton" />
        <attribute name="Min Size" value="50 17" />
        <attribute name="Max Size" value="50 17" />
        <attribute name="Layout Mode" value="Vertical" />
        <attribute name="Layout Border" value="1 1 1 1" />
        <element type="Text">
            <attribute name="Text" value="Del" />
            <attribute name="Text Alignment" value="Center" />
        </element>
    </element>
</element>