how to change colour of existing vs code theme code example

Example 1: How to change color VSCode

Install Material Theme by Mattia Astorino —>  use "Set Color Theme"

Example 2: change vs code title bar theme color

"workbench.colorCustomizations": {
        "titleBar.activeBackground": "#ffffff",
        "titleBar.activeForeground": "#000000",
    }
    
    
    /*add this code in setting -> workbench -> edit json -> add above code */