WordPress 3.6 is live with a spanking brand new default theme that is “bold, beautiful and sleek” – but we thought we’d change that be “Bold, Beautiful and Bootstraped” and ofcourse it is still sleek 
So let us introduce the TwentyThirteen’s child theme – StrapThirteen Is Here! Take a look at the attached image and then check out the demo site by clinking the link below.