This theme is not available. Did you try and search for a free or paid theme that accomplishes this?
Thanks for your reply! I just wanted to know how to modify the bp-default theme with a child theme, so it will look like the buddypress.org theme.
@sobuddy
You still have an outstanding reply to respond to – help was given and solution provided for your previous issue with your theme please check that thread and mark it as resolved if issue corrected now before moving on to a new question about your theme header.
https://buddypress.org/community/groups/how-to-and-troubleshooting/forum/topic/all-the-texts-are-turned-white-in-buddypress-default-theme-in-ie/