This is a Black N Yellow Tweetbot theme i did. Since I live so close to the Burgh, it's only right to make this to represent my true colors. Also check the BiteSMS theme that goes perfectly with this.
You will also need iCleaner from cydia. Its a free download. Just apply the theme in Winterboard and then run iCleaner. YOU MUST RUN iCLEANER IN ORDER FOR THIS THEME TO WORK PROPERLY!!!!!!
And yes you will need to have the Tweetbot app installed for this theme to work. You wouldn't believe the emails i get about people saying their twitter isn't themed
Apply in Winterboard and then run iCleaner
See larger Screenshots below..