Usage of theme name in functions

In short: it’s the so called »textdomain«. The longer explanation: If you look accurate on your first example, you’ll see, that this parameter is not the second parameter for the_content but for the Funktion __(): <?php the_content( __( ‘Continue reading <span class=”meta-nav”>&rarr;</span>’, ‘twentythirteen’ ) ); ?> This function is part of the internationalisation (»I18n«) functions … Read more