Joan Boluda

unitepress

WordPress uses a default quality of 90% for images served on the website, to conserve space and bandwidth. This plugin forces it to be 100%

Force jpeg quality

WordPress uses a default quality of 90% for images served on the website, to conserve space and bandwidth. This plugin forces it to be 100%.

Mario Peshev

Theme Mentor is a cousin of the Theme-Check plugin getting deeper into the code analysis.
It’s using different approaches to monitor for common problems regarding theme reviews from the WordPress Theme Reviewers Team. It is prone to fault analysis, so use only as a reference for improving your code base even further.
Currently supported validations:
<ul>
<li>Mark all tags in template files</li>
<li>Mark all tags in template files</li>
<li>Warn about query_posts() usage</li>
<li>capital_P_dangit control (disallow any WordPress spelling other than WordPress as is – that is WORDPRESS and WordPress, ugh)</li>
<li>wp_deregister_script(‘jquery’) is forbidden</li>
<li>wp_dequeue_script(‘jquery’) is forbidden</li>
<li>prevent global $data; call as a common troublemaker (props @pippinsplugins)</li>
</ul>
header.php specific
<ul>
<li>Make sure that wp_head is before </li>
<li>Ensure that wp_title(…) is called within and tags</li>
</ul>
footer.php specific
<ul>
<li>Make sure that wp_footer is before </li>
</ul>

Theme Mentor

Theme Mentor is a cousin of the Theme-Check plugin getting deeper into the code analysis.

Force jpeg quality vs Theme Mentor