<?xml version="1.0"?>
<graph string="Tasks" sample="1" js_class="project_graph">
                    <field name="project_id"/>
                    <field name="stage_id"/>
                    <field name="color" invisible="1"/>
                    <field name="sequence" invisible="1"/>
                    <field name="rating_last_value" string="Rating (/5)"/>
                </graph>
            