title: Windows Forms MenuStrip Border Color
body: <p>I am making app in Windows Forms. I've added MenuStrip and changed it colors using ToolStripProfessionalRenderer. The problem is that whenever I am trying to change dropdown border color it only changes the outside border ( image below ).<br>
  <img src="https://i.stack.imgur.com/Xwjtn.png" alt=""></p>
  
  <p>How can I change the remaining white border that still is visible inside? Or how to just disable border there?</p>