gistfile1.txt

<?xml version="1.0"?>
<tree decoration-bf="message_needaction==True" decoration-danger="date_deadline and (date_deadline&lt;current_date)" string="Tasks">
                    <field name="message_needaction" invisible="1"/>
                    <field name="sequence" invisible="1"/>
                    <field name="name"/>
                    <field name="ac_account"/>
                    <field name="partner_id"/>
                    <field name="state_id"/>
                    <field name="order_type"/>
                    <field name="service_type_id"/>
                    <field name="promise_service_date"/>
                    <field name="assign_id"/>
                    <field name="description"/>
                    <field name="stage_id"/>
                    <field name="disposition_resolution"/>
                    <field name="task_type" invisible="1"/>
                    <field name="requested_completion" invisible="1"/>
                    <field name="project_id" invisible="1"/>
                    <field name="user_id" invisible="1"/>
                    <field name="planned_hours" invisible="1"/>
                    <field name="date_deadline" invisible="1"/>
                </tree>