element not used darken in vscode code example

Example 1: change color visual studio code lower line

"workbench.colorCustomizations": {
    "statusBar.background" : "#1A1A1A",
    "statusBar.noFolderBackground" : "#212121",
    "statusBar.debuggingBackground": "#263238"
}

Example 2: How to change color VSCode

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