How can I change the scrollbar separator color in vscode?

Question

Need to change this color, its not one of the options provided for scrollbar theming. Is it hiden someplace else?

Scroll Bar Control
scrollbar.shadow: Scroll Bar shadow to indicate that the view is scrolled.
scrollbarSlider.activeBackground: Slider background color when active.
scrollbarSlider.background: Slider background color.
scrollbarSlider.hoverBackground: Slider background color when hovering.

Answer 1

To change the colour of the separator, you can add this to settings.json:

"workbench.colorCustomizations": {
    "editorOverviewRuler.border": "#191C22"
}

Answer 2

settings.json:

"editor.overviewRulerBorder": false