I've done one myself for quite a while. You can download it on my deviantart page.
Also a wallpaper:
Hi,I love this logo i have it for my about this mac image. I tried and couldn't get all the transparency out. Though I would like to make it as my boot image with bootxchanger could you upload this with a background color(#BFBFBF) of the boot screen and have it be a small size here is what also it says on the website: http://namedfork.net/bootxchanger/
If your image has too many, it will be reduced and probably look ugly. If this happens, you can try saving the image in GIF or PNG-8 with Photoshop, and making sure it uses 100 colours or less.
On Intel Macs, it's even worse: images have to be compressed to fit in the boot file. If your image is too complex and doesn't fit, BootXChanger will show a message and you won't be able to apply it. Simply put:
- You can't change the background colour, it's #BFBFBF
- Use an image with less than 100 colours
- On Intel Macs, use simpler shapes or smaller images