@Tiksha I was able to make this work, html formatting will also work for Gmail connector
Gmail output

Sample HTML for your reference which I have used
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<style>td {width:50%;border: 1px solid;}
#t1 {width:100%;border: 1px solid;border-collapse:collapse;}
</style>
</head>
<body>
Hello, <br>
<br>
Test
<br>
<br>
<b>TEST</b> <br>
<br>
<table id="t1">
<tbody>
<tr>
<td style="background-color:#dddddd"><b>COL1</b></td>
<td>VAL1</td>
</tr>
<tr>
<td style="background-color:#dddddd"><b>COL2</b></td>
<td>VAL2</td>
</tr>
</tbody>
</table>
<br>
<br>
</body>
</html>
--------------------------------------------------------------------------------
If this post helps answer your question, please click on “Accept as Solution” to help other members find it more quickly. If you thought this post was helpful, please give it a Thumbs Up.