title: Drop down menu's in VSCode are black/blank
body: <p>This is my first question on here, so I apologize if it's confusing or redundant. I'm doing research for one of my professors, and I'm having a really annoying problem on my Virtual Machine. I'm running Ubuntu 18.0.4 through virtual Box and VSCode's drop down menu's/right click menu's are <strong>black</strong>. The text is unreadable but I am able to click in the box  on whatever choice I'd be hovering over.</p>
  
  <p><a href="https://i.stack.imgur.com/mMBLA.png" rel="nofollow noreferrer">When I try to click on a drop down menu</a></p>
  
  <p><a href="https://i.stack.imgur.com/kSHJn.png" rel="nofollow noreferrer">When I right click on anything</a></p>
  
  <p>I've tried updating to the most recent version of VSCode (January 2020) and a complete uninstall + reinstall. I haven't been able to find anyone online that's had the same problem as me either. Has anyone experienced this bug before? If so, have you been able to fix it?
  Thank you.</p>