Fix white cables

netbox/templates/dcim/trace/cable.html

@@ -1,6 +1,6 @@
 {% load helpers %}
 
-<div class="cable" style="border-left-color: #{{ cable.color|default:'606060' }}; {% if cable.status != 'connected' %} border-left-style: dashed{% endif %}">
+<div class="cable" style="border-left-color: #{% if cable.color == 'ffffff' %}909090; border-left-style: double; border-left-width: 6px;{% else %}{{ cable.color|default:'606060' }};{% endif %} {% if cable.status != 'connected' %} border-left-style: dashed{% endif %}">
     <strong>
         <a href="{% url 'dcim:cable' pk=cable.pk %}">
             {% if cable.label %}<code>{{ cable.label }}</code>{% else %}Cable #{{ cable.pk }}{% endif %}