Awesome

gfxutil

A tool to work with Device Properties commonly found in Apple Mac firmwares by mcmatrix. Usage examples and changelogs may be found at forum.netkas.org. You are free to use it and whatever you do please keep the result free for community. Use -h flag for help.

edk2 files required for compilation, example:

git clone https://github.com/acidanthera/audk edk2
git clone https://github.com/acidanthera/gfxutil gfxutil
cd gfxutil
xcodebuild