Colors 阶段上没有颜色的工作流标题

嗨，伙计们，我有一个问题，我做了一个工作流程，但阶段不会改变颜色

这就是工作流程

<!--########################################## workflow ########################################-->

    <record model="workflow" id="wkf_clinica">
        <field name="name">workflow.clinica</field>
        <field name="osv">gs.pet</field>
        <field name="on_create">True</field>
    </record>

    <!--##################################### Activity #############################################-->

    <record model="workflow.activity" id="act_new">
        <field name="wkf_id" ref="wkf_clinica" />
        <field name="flow_start">True</field>
        <field name="name">novo</field> 
    </record>

<record model="workflow.activity" id="act_regist">
        <field name="wkf_id" ref="wkf_clinica" />
        <field name="name">registado</field>
        <field name="kind">function</field> 
    <field name="action">pet_regist()</field>
</record>


<record model="workflow.activity" id="act_validate">
        <field name="wkf_id" ref="wkf_clinica" />
        <field name="name">validado</field>
        <field name="kind">function</field>
        <field name="action">pet_validate()</field>
</record>

<record model="workflow.activity" id="act_dead">
        <field name="wkf_id" ref="wkf_clinica" />
        <field name="name">morto</field>
         <field name="flow_stop">True</field>
        <field name="kind">function</field>
        <field name="action">pet_dead()</field>
</record>

<!--##################################### Transition #############################################-->
<record model="workflow.transition" id="new_to_regist">
        <field name="act_from" ref="act_new" />
        <field name="act_to" ref="act_regist" />
        <field name="signal">pet_regist</field>
</record>

<record model="workflow.transition" id="regist_to_validate">
        <field name="act_from" ref="act_regist" />
        <field name="act_to" ref="act_validate" />
        <field name="signal">pet_validate</field>
</record>

<record model="workflow.transition" id="validate_to_dead">
        <field name="act_from" ref="act_validate" />
        <field name="act_to" ref="act_dead" />
        <field name="signal">pet_dead</field>
</record>

gs_宠物（）

从我的观点来看

 <record id="view_pets_form" model="ir.ui.view">
        <field name="name">Pets</field>
        <field name="model">gs.pet</field>
        <field eval="0" name="priority"/>
        <field name="type">form</field>
        <field name="arch" type="xml">



            <form string="Pets" version="7.0">

            <header>

            <button name="pet_regist" string="Registar" status="registado" class="oe_highlight" type="workflow" />


            <field name="state" widget="statusbar" statusbar_visible="novo,registado"               statusbar_colors='{"novo":"blue",
                    "registado":"blue",
                    "validado":"blue",
                    "morto":"blue"}' />
    </header>

宠物
宠物
形式

我搞不懂发生了什么事。。。。第一状态“novo”均未显示为蓝色

 <record id="view_pets_form" model="ir.ui.view">
        <field name="name">Pets</field>
        <field name="model">gs.pet</field>
        <field eval="0" name="priority"/>
        <field name="type">form</field>
        <field name="arch" type="xml">



            <form string="Pets" version="7.0">

            <header>

            <button name="pet_regist" string="Registar" status="registado" class="oe_highlight" type="workflow" />


            <field name="state" widget="statusbar" statusbar_visible="novo,registado"               statusbar_colors='{"novo":"blue",
                    "registado":"blue",
                    "validado":"blue",
                    "morto":"blue"}' />
    </header>