title: How to change the color of Menu in material-ui
body: <p>I am using Menu from <code>material-ui</code> and want to change the background color. Problem is, when I give color to Menu, it changes the whole page background when the menu popper appears. And when I apply color to Menu Items, it leaves some grey shades at the top and bottom, because all these menu Items are enclosed inside a div. 
  Problem Sandbox: <a href="https://codesandbox.io/s/material-ui-dropdown-background-color-g88e1" rel="nofollow noreferrer">https://codesandbox.io/s/material-ui-dropdown-background-color-g88e1</a></p>
  
  <p>What's the right way to change Menu's background color? </p>
  
  <p>I tried <code>createMuiTheme</code> for changing this, but it changes the color of all the Menus in my application. I want to apply this style to only one of the Menu Items. So looking for a solution to do this using <code>makeStyle</code></p>