text: var fs = require('fs')
  var path = require('path')
  var Canvas = require('..')
  
  var canvas = Canvas.createCanvas(150, 150)
  var ctx = canvas.getContext('2d')
  
  ctx.fillRect(0, 0, 150, 150) // Draw a rectangle with default settings
  ctx.save() // Save the default state
  
  ctx.fillStyle = '#09F' // Make changes to the settings
  ctx.fillRect(15, 15, 120, 120) // Draw a rectangle with new settings
  
  ctx.save() // Save the current state
  ctx.fillStyle = '#FFF' // Make changes to the settings
  ctx.globalAlpha = 0.5
  ctx.fillRect(30, 30, 90, 90) // Draw a rectangle with new settings
  
  ctx.restore() // Restore previous state
  ctx.fillRect(45, 45, 60, 60) // Draw a rectangle with restored settings
  
  ctx.restore() // Restore original state
  ctx.fillRect(60, 60, 30, 30) // Draw a rectangle with restored settings
  
  canvas.createPNGStream().pipe(fs.createWriteStream(path.join(__dirname, 'state.png')))
  