Sure, although the first steps of customization comes from avada theme who integrate styles for bbpress as you can see on this page : http://theme-fusion.com/avada/forums/forum/general-information/
The following is the css i added to the style.css file of avada. I’m a begineer so let me know if something is wrong.
#bbpress-forums li.bbp-header, #bbpress-forums div.bbp-reply-header, #bbpress-forums #bbp-single-user-details #bbp-user-navigation li.current a, div.bbp-template-notice, div.indicator-hint {
background: rgba(255, 204, 0, 0.65) !important;
}
#bbpress-forums li.bbp-body ul.forum, #bbpress-forums li.bbp-body ul.topic {
font-size: 17px;
}
li.bbp-forum-topic-count, li.bbp-topic-voice-count, li.bbp-forum-reply-count, li.bbp-topic-reply-count {
float: left;
text-align: center;
width: 11%;
}
#bbpress-forums ul.bbp-lead-topic, #bbpress-forums ul.bbp-topics, #bbpress-forums ul.bbp-forums, #bbpress-forums ul.bbp-replies, #bbpress-forums ul.bbp-search-results, #bbpress-forums li.bbp-body ul.forum, #bbpress-forums li.bbp-body ul.topic, #bbpress-forums div.bbp-reply-content, #bbpress-forums div.bbp-reply-header, #bbpress-forums div.bbp-reply-author .bbp-reply-post-date, #bbpress-forums div.bbp-topic-tags a, #bbpress-forums #bbp-single-user-details, div.bbp-template-notice, div.indicator-hint .bbp-arrow {
border-color: #FAD200 !important;
}
#bbpress-forums div.odd, #bbpress-forums ul.odd {
background: rgba(10, 89, 229, 0.16);
}
#bbpress-forums ul.bbp-lead-topic, #bbpress-forums ul.bbp-topics, #bbpress-forums ul.bbp-forums, #bbpress-forums ul.bbp-replies, #bbpress-forums ul.bbp-search-results {
font-size: 15px;
}
And a few BBpress specific’s plugins :
Social Login (also a wordpress plugin)
Orbisius bbPress Enhancer
bbPress New Topic Emailer
bbPress Enable TinyMCE Visual Tab
bbPress2 shortcode whitelist
bbPress2 BBCode
And unfortunatly bbPress Threaded Replies doesn’t work with bbPress Enable TinyMCE Visual Tab, it’s one or the other.