WP_Theme_Install_List_Table::theme_installer_single( object $theme )

Source

File: wp-admin/includes/class-wp-theme-install-list-table.php

public function theme_installer_single( $theme ) {
		?>
		<div id="theme-installer" class="wp-full-overlay single-theme">
			<div class="wp-full-overlay-sidebar">
				<?php $this->install_theme_info( $theme ); ?>
			</div>
			<div class="wp-full-overlay-main">
				<iframe src="<?php echo esc_url( $theme->preview_url ); ?>"></iframe>
			</div>
		</div>
		<?php
	}