background question...

[2kidz]

ok, prior to coming into work and after playing/tweaking my phone all day...my phone is no longer pretty

i put the cookie monster tab on it and then realized that i no longer have my stock 'isaac mizrahi purple' (located in settings-today) on ALL my screens!!! as a matter of fact, i have somehow reverted BACK to the ugly all black background in my 'messages' w/ white texts!!! i'm BEYOND pist!!! i want my isaac back!!! with isaac on the background of my messages, there were NO lines or anything...please help me asap!!! what did i do to mess up my phone...oh, i have since removed my cookie monster because i didnt see any real difference with it and it deleted some of the quick links i had previously....