content-single.php

<?php
    global $post;

    // DR Start Get the post Category
    $custom = "";
    $categories = wp_get_post_categories( $post->ID );
    if( isset( $categories ) ) {
        $curr_cat = get_category( $categories[0] );
        $custom = '<h4><a href="'. get_category_link( $categories[0] ) . '">' .$curr_cat->cat_name .'</a><h4>'; // DR Add any Style Class Here!
    }
    // DR End Get the first Category

    theme_post_wrapper(
        array(
                'id' => theme_get_post_id(),
                'class' => theme_get_post_class(),
                'title' => theme_get_meta_option($post->ID, 'theme_show_post_title') ? get_the_title() : '',
                'before' => theme_get_metadata_icons('date,author,edit', 'header'),
                'content' => theme_get_content(),
                'after' => theme_get_metadata_icons('tag', 'footer'), // DR Optional Remove Categories from array
                'custom' => $custom // DR Pass in the Category
        )
    );
?>