You must be rooted and have CMW installed ;p
I take no credit ... but i have try too many files (only this files work great with XT925) and don't have the people at the origin sorry...
All work except photosphere ( photosphere work ... if you modify your build.prop... but the XT925 don't have Gyroscope... and photosphere pics is not very good )
Photo - Video - Panorama - Gallery - Filters - Edit ... works without any FC
Installation : Flash the zip ... reboot one time after ... all work great ! Enjoy the new gallery and camera !