Default [Q] Custom Theme Problem

Hello guys.Well i have been downloading the awesome custom theme that is been posted in the xperia z thread's and all of them is very promising one.but i have a a little problem.

1.when i apply the theme and then i reboot the phone.some of the icon will change back to the original stock icon

2.when i apply theme some of the icon still remain the same and the icon didnt change.

Spec :

Xperia Z c6602
Stock Rom 4.4.2
(Rooted + Deodexed)
(Using SU Mod From This Thread =

Hope u guys can help me solve this.