i did find a way to remove the shutdown splash by editing an ELF image file, (i know it can be changed by replacing the image in icons) but i dont want to replace the image i want to tell the device to look elsewhere for it, it didnt work, instead it removed it, there is also reference to the startup splash but i worry that changing that would cause phone to fail to boot, thats why i tested this method on the shutdown splash, point is that there is reference to system/systemui in this file, and thats where i want access to