So you want to add/remove something in some HTML template? You are on right place 
Tag Archives: change
How to change uploaded thumbnails size?
Thumbnail images size can be configured in: application\libraries\UploadHandler.php, lines 117 – 121. Will work only for new uploaded images…
'thumbnail' => array( 'max_width' => 300, 'max_height' => 225, 'jpeg_quality' => 90 )