andokai

  "workbench.colorCustomizations": {
    "tab.inactiveBackground": "#000000",
    "activityBar.background": "#000000",
    "sideBar.background": "#000000",
    "editor.background": "#000000",
    "editorGroupHeader.tabsBackground": "#000000",
    "statusBar.background": "#000000",
    "statusBar.debuggingBackground": "#000000",
    "statusBar.noFolderBackground": "#000000",
    "titleBar.activeBackground": "#000000",

andokai

Login to VM using an account with sudo permission.

Add the new user with the username "new-user".

sudo useradd -c 'New User' -m -G sudo new-user

-m creates the home folder and -G sudo adds them to the sudo user group.

Switch to the newly created account .