fnbl/index.js

const colors = {
    reset: '\x1b[0m',
    bright: '\x1b[1m',
    fg: {
        red: '\x1b[31m',
        blue: '\x1b[34m',
        white: '\x1b[37m'
    },
    bg: {
        red: '\x1b[41m'
    }
};

const style = (...codes) => (text) => `${codes.join('')}${text}${colors.reset}`;

const redBg = style(colors.bg.red);
const redBgWhiteText = style(colors.bg.red, colors.fg.white, colors.bright);
const blueText = style(colors.fg.blue);
const bright = style(colors.bright);
const redText = style(colors.fg.red);

const errorText = '                This is not the FNLB package you are looking for.                ';

console.log();
console.log(redBg(' '.repeat(errorText.length)));
console.log(redBgWhiteText(errorText));
console.log(redBg(' '.repeat(errorText.length)));
console.log();

console.log(`To install the real ${blueText(bright('FNLB package'))}:\n`);
console.log(`- Use ${bright(`npm install ${blueText('fnlb')}@latest`)} instead of ${redText('fnbl')}.`);
console.log();

process.exit(1);