note() {
    printf "${blue}==>${yellow} NOTE$1:${bold} $2${all_off}\n"
}

all_off="$(tput sgr0)"
bold="${all_off}$(tput bold)"
blue="${bold}$(tput setaf 4)"
yellow="${bold}$(tput setaf 3)"

post_install() {
    note 1 "This package replaces regular firefox."
    note 2 "Valid launchers are: 'firefox' and 'firefox-unbranded-bin'."
}

post_upgrade() {
    post_install
}