bbPress - Breadcrumbs #2635 https://bbpress.trac.wordpress.org/ticket/2635

bbp-breadcrumbs-2635.php

<?php
/*
Plugin Name: bbPress - Breadcrumbs #2635
Plugin URI: https://bbpress.trac.wordpress.org/ticket/2635
Description: bbPress - Breadcrumbs #2635
Version: 0.1
Author: Stephen Edgar - Netweb
Author URI: http://netweb.com.au
*/

add_filter('bbp_before_get_breadcrumb_parse_args', 'ntwb_bbpress_custom_breadcrumb' );
function ntwb_bbpress_custom_breadcrumb() {
	// HTML
	$args['before']          = '<div class="bbp-breadcrumb"><ul>';
	$args['after']           = '</ul></div>';

	// Separator
//	$args['sep']             = is_rtl() ? __( '&lsaquo;', 'bbpress' ) : __( '&rsaquo;', 'bbpress' );
	$args['sep']             = '';
	$args['pad_sep']         = 1;
	$args['sep_before']      = '';
	$args['sep_after']       = '';

	// Crumbs
	$args['crumb_before']    = '<li>';
	$args['crumb_after']     = '</li>';

	// Current
	$args['current_before']  = '<span class="bbp-breadcrumb-current">';
	$args['current_after']   = '</span>';

	return $args;
}

bbpress-2635-css.diff

Index: src/templates/default/css/bbpress.css
===================================================================
--- src/templates/default/css/bbpress.css	(revision 5415)
+++ src/templates/default/css/bbpress.css	(working copy)
@@ -401,7 +401,10 @@
 /* =Breadcrumb and Tags
 -------------------------------------------------------------- */
 
-div.bbp-breadcrumb {
+div.bbp-breadcrumb,
+div.bbp-breadcrumb ul,
+div.bbp-breadcrumb li,
+div.bbp-breadcrumb a {
 	float: left;
 }
 
@@ -423,6 +426,8 @@
 	clear: both;
 }
 
+div.bbp-breadcrumb ul li a::after{ content: ' › '; }
+
 /* =Search
 -------------------------------------------------------------- */