user pictures not showing up in posts & comments I am using a custom theme and it is not showing user pics in comments.

When I compared 'Appearance > Settings > Toggle display settings' of my theme with Bartik, if found that "User pictures in posts" &amp; "User pictures in comments" is missing in my theme settings. 

I don't understand what I am missing in my theme. Please suggest.
comment.tpl.php is the template file which controls the view of comments in a page. You may search for this template file in your theme and edit it according to your requirement. 

If you would like to customize the comments display for a specific content type the template file would be comment--node-[type].tpl.php