BootXChanger for Mac

Description

Change the boot image and background. To set an image as a boot image, open BootXChanger and drag it to the image well, and click Apply. You can also change the background colour. You will be asked for an administrator password, as the boot image is stored in a system file. If your image has transparency, it will be redrawn over the background colour before being applied, so save the original somewhere in case you want to change the background colour later. Some macs will scale big images down when booting, or ignore the image if it's really big. Others will happily accept a full-screen image.