<?xml version="1.0"?>
<tree string="Next Activities" decoration-danger="not is_closed and activity_date_deadline &lt; current_date" default_order="activity_date_deadline">
                    <field name="company_id" invisible="1"/>
                    <field name="is_closed"/>
                    <field name="name"/>
                    <field name="project_id" options="{'no_open': 1}"/>
                    <field name="activity_date_deadline"/>
                    <field name="activity_type_id"/>
                    <field name="activity_summary"/>
                    <field name="stage_id"/>
                </tree>
            