html_template_readings2.html

<tr>
    <th><span style="background-color: #0BB10D;">_{{IntervalTypes}}_</span></th>
    <th><span style="background-color: #0BB10D;">_{{TriggerTypes}}_</span></th>
</tr>
<tr>
    <th><span style="background-color: #F4A460;">_{{IntervalReadings}}_</span></th>
    <th><span style="background-color: #F4A460;">_{{TriggerReadings}}_</span></th>
</tr>