for the 600 x 150 image: You can change the names and dimensions to whatever you like. Enjoy! */ add_filter( 'image_size_names_choose', 'bones_custom_image_sizes' ); function bones_custom_image_sizes( $sizes ) { return array_merge( $sizes, array( 'bones-thumb-600' => __('600px by 150px'), 'bones-thumb-300' => __('300px by 100px'), ) ); } /* The function above adds the ability to use the dropdown menu to select the new images sizes you have just created from within the media manager when you add media to your content blocks. If you add more image sizes, duplicate one of the lines in the array and name it according to your new image size. */ /************* ACTIVE SIDEBARS ********************/ // Sidebars & Widgetizes Areas function bones_register_sidebars() { register_sidebar(array( 'id' => 'sidebar1', 'name' => __( 'Sidebar 1', 'bonestheme' ), 'description' => __( 'The first (primary) sidebar.', 'bonestheme' ), 'before_widget' => '
', 'before_title' => '