i found this lines of code (ex. mint) in the other topic (https://xcp-ng.org/forum/topic/4583/adding-os-logos/14?_=1709647941739)
on the right side my version as ex.
NAME="Linux Mint"
VERSION="20.1 (Ulyssa)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 20.1"
VERSION_ID="20.1"
NAME="Scientific Linux"
VERSION="7.2 (Nitrogen)"
ID=scientificlinux
ID_LIKE=redhat
PRETTY_NAME="Scientific Linux 7.2"
VERSION_ID="7.2"
do i forgot to add some more lines like those (up) for e.x. ?