i have Boolean Value with True & False
blacklist is boolean value field
what i wants
if value is True it's show Green Single type Dot if its false it's Show Red Bot Button ..
```
<record id="fo_visitor_kanban_view" model="ir.ui.view">
<field name="name">fo.visitor.kanban</field>
<field name="model">fo.visitor</field>
<field name="arch" type="xml">
<kanban> <field name="id"/>
<templates>
<t t-name="kanban-box">
<div class="oe_kanban_global_click">
<div class="o_kanban_image">
<img t-att-src="kanban_image('fo.visitor', 'visitor_image', record.id.value)"/>
</div>
<div class="oe_kanban_details">
<strong>
<ul>
<li>Name :<field name="name"/></li>
<li>Phone:<field name="phone"/></li>
<li>Blacklist:<field name="blacklist" /></li>
</ul>
</strong>
</div>
</div>
</t>
</templates>
</kanban>
</field>
</record>
```