Screenshot

color.js

// note to all who see this - i haven't tested this yet so I have no idea if it works yet

const puppeteer = require('puppeteer')
const browser = await puppeteer.launch();

const color = "#00ff00"
const width = 1920
const height = 1080

const page = await browser.newPage();

await page.setViewport({
        width : width,
        height: height
    });

// sets a page color
page.setContent(`<style>body{background-color: ${color};}</style>`)

// loads a page, but we don't need that for this purpose. just here for reference
// page.goTo("someurl")

console.log(await page.content());

await page.screenshot({path: 'screenshot.png'});

await browser.close();