Activity Bar width in Visual Studio Code

Question

Is there a way to selectively change the width of the Activity Bar in VSCode (v. 1.14)? I have a 1366×768 screen where every pixel counts, so I would like to make this bar narro

Answer 1

EDIT (03/03/20): You can also use the customize-ui addon that allows more fine-grained font sizes and other goodies

---

You can also use the negative zoom trick in settings.json:

{
  "window.zoomLevel": -1,
  "editor.fontSize": 13,
  "terminal.integrated.fontSize": 16,
}

The whole editor will get smaller so you need to compensate editor.fontSize and terminal.integrated.fontSize

This allows for smaller activity bar (unfortunately it acts on everything (icons size, font-size ...)) but I much prefer this than the defaults.