If a took a ROM zip file, like rubiXFocused1.9.0.zip (the one for the leak) and I look inside of it, it has a similar structure to that of my phone. I can see 2 folders, meta-inf and system. I have no idea what the first one is for, but I can see that system has /system/media/audio/notifications/.
Could I go into the zip and add files to these folders? I'm asking because I use different sounds for notifications which I have to move using root explorer from my backup to the phone every time I load a new rom.
Would modifying the zip file corrupt the rom? maybe the /meta-inf folder has a manifest of the files that should be in system?
Thanks in advance for any info/education!