Ambriel biteSMS theme by flybritn

you must be using a version of biteSMS app that aloows themes to be enabled with in the apps settings

place the folder into var/mobile/Libray/biteThemes

you also may need to navigate to 
var/mobile/Library/Caches & delete all of the "bsbg-320 ..... .png" & "bsbg-414 ..... .png" files. then respring


Note: There may be several of them and you must delete the all 