powerline prompt for fishfish (with patched font)

config.fish

set DARKGREEN 2b6003
set LIGHTGREEN b7da2d
set DARKBLUE 2f6f93
set LIGHTBLUE 87d6fc
set SPARATOR \u2b80
set SPARATOR_THIN \u2b81

function fish_prompt
    # first line
    set_color -o $DARKGREEN -b $LIGHTGREEN
    printf (pwd | awk '{sub("'$HOME'"," ~"); gsub("/", " / "); print $0}' | tr -s '/' $SPARATOR_THIN)
    set_color $LIGHTGREEN -b normal
    printf $SPARATOR
    echo
    # second line
    set_color -o $LIGHTBLUE -b $DARKBLUE
    printf ' $ '
    set_color $DARKBLUE -b normal
    printf $SPARATOR
    set_color normal
end