Lost 'Default' Theme

[Belle]

 I was trying to take off a background & somehow deleted the boards. Can some help. or is there any way to get it back? 
 The default theme now is 'Blue', but the 'default' is still labeled 'default'.   'Standard Theme'

sassy55.proboards.com/

[Belle]

  Problem solved!  

 Thanks to True Patriot from  Our Community Library