New gallery 3d

this is not stock gallery come with ace. In this galler background changes accordingly pictures.
First your ace should be rooted
Then you need root explorer link is hereroot explorer
Now download gallery link is heregallery 3d
now poen root explorer and go onto sdcard and go where you put this gallery. now copy this gallery and go back and now go in system/app/ now first hit r/w button onright side top then pest gallery it say replace older one push yes.
now long press on new gallery you see below image

Now click on permissions so you see below image

so tick on only options that i show you in image and press ok. now akain click ongallery 3d. you see install button. click install and reboot your phone.
now you get new gallary