To find a high-definition (HD) wallpaper in PNG format, you can use the anime-wallpaper package. Here's a brief snippet to get you started:

npm install anime-wallpaper

Then, you can use the following code to download and display an HD wallpaper:

const animeWallpaper = require('anime-wallpaper');

animeWallpaper.get('hd', (err, data) => {
  if (err) console.error(err);
  else {
    const img = new Image();
    img.src = data.url;
    document.body.appendChild(img);
  }
});

This code will download and display an HD wallpaper from the anime-wallpaper package. You can replace 'hd' with any other category you prefer (e.g., 'lowres', 'medium', etc.).