title: How to change line separators in menustrip in visual studio?
body: <p>I am having a problem witth visual studio. I created a menustrip with different menus and some contain separators. I want the theme of the program to be dark so I changed the color of all buttons to black background and white text. 
  however I cannot change the separators' colors. They are white background and black line. I tried from properties - not working. I tried with code - also not working. Can anyone help me?
  Also I want to ask how to change the color of the outline of the buttons? it's currently white.</p>
  
  <p><a href="https://i.stack.imgur.com/HZP2q.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HZP2q.jpg" alt="enter image description here"></a></p>