Re: Using BP Default 1.1.2 theme as blog theme
The bp-default theme is a “child theme” of bp-sn-parent theme, and you copy the bp-default theme and rename the theme folder to e.g. mythemename to make a child theme of your own. It’s not easy. If you have strong CSS foundation and Firebug, this process will take a few hours to tweak if you already have a design in mind.
https://codex.buddypress.org/how-to-guides/building-a-buddypress-child-theme/ Plus google “create wordpress child themes” or check out ” free BuddyPress child themes”
Btw, you can download latest BP 1.1.3 already 
