Well, from what I've seen, image is embedded into the .msi file that @peterf1999 provided for conversion.

notes from peter... loong ago..

1) Extract the streams and storages from MSI database:

msix Game.msi /out .\


2) Edit & save with images editor (Photoshop is so good ) the dialog and banner bitmaps:



Binary.WixUI_Bmp_Dialog
Binary.WixUI_Bmp_Banner

3) Remove the original stream files from MSI database (binary table):



msidb -d Game.msi -k Binary.WixUI_Bmp_Dialog

msidb -d Game.msi -k Binary.WixUI_Bmp_Banner


4) Add the new bitmaps files to MSI database (binary table):



msidb -d Game.msi -a Binary.WixUI_Bmp_Dialog

msidb -d Game.msi -a Binary.WixUI_Bmp_Banner

have fun :)

OK, below is the image how new Setup looks like.

I just changed the main image. Everything else is untouched.

Feel free to use it if you like it.
Conversion process is same as in peterf1999's post

Someone have the conversión from Fable 3 Complete?

Places game data in request section, surely some of us will create a new conversion :)