Feature request : Allow specifying the separator character

[windware-ono]

There are times where I use this theme but since the server is shared among several users, I don't want to force them to use patched fonts and I want to remove those special characters from showing up.

I managed to do it by changing bullet-train.zsh-theme with,

331: if [ ! -n "${SEGMENT_SEPARATOR+1}" ]; then
332:    SEGMENT_SEPARATOR=''
333: fi

and specifying SEGMENT_SEPARATOR='' in .zshrc.