MSI Prestige 15 Bios

Hello,

I’m looking to modify my bootlogo with something more sober. I found that it was stored in 7BB28B99-61BB-11D5-9A5D-0090273FC14D. Do I just have to replace the body with a new image? If yes, what format should I use? (jpeg but with what compression?) Thank you.

Here’s the link to the latest bios available :
https://www.msi.com/Laptop/support/Prestige-15-A10SC