How to change the background color of the tab bar of vscode using settings.json

I've been following this tutorial by Coder Coder to make my vscode look better (tutorial link https://youtu.be/pGzssFNtWXw). As per the video I've opened the settings.json file and just wrote some code But when I can't be able to find the code to change the background of the tab-bar.()

Here is what I've tried:

"tab.background" : "#000000"

Here is the code:

"workbench.colorCustomizations": {
        "editor.background": "#000814",
        "sideBar.background": "#000d20",
        "sideBarTitle.foreground": "#ffd60a",
        "sideBarSectionHeader.foreground": "#ffd60a",
        "activityBar.activeBackground": "#ffea81d5",
        "activityBar.background": "#22223b",
        "statusBar.background": "#ffd60a",
    }