Install instuctions To install via SD card
1) Rename .zip.conf file to .zip
2) Extract skin folder from zip file to your sd card
3) Use Command app on RS-97 to copy skin folder from sd card to /mnt/game/gmenu2x/skins/
4) Go to Settings > Skin, use left/right to select the skin and confirm with start.
Source downlod here https://boards.dingoonity.org/ingenic-jz4760-devices/ps4-skin-for-gmenu-on-rs-97/
Thanks to Steward-Fu for the images.