Interface color

Hello, I’m developing a script that changes the color of the interface for the user.
But I can’t find the command that changes the part in red that I marked in the image.

# -*- coding: utf-8 -*-
import rhinoscriptsyntax as rs
import Rhino as r
import System.Collections.Generic

def main():
    green = System.Drawing.Color.LightGreen
    black = System.Drawing.Color.Black
    white = System.Drawing.Color.White
    default = System.Drawing.Color.FromArgb(157,163,170)
    op_user = rs.GetString("Select the color for the interface", strings = ["Default","Black","Green"])
    if op_user == "Default":
        r.ApplicationSettings.AppearanceSettings.CommandPromptBackgroundColor = white
        r.ApplicationSettings.AppearanceSettings.CommandPromptTextColor = black
        r.ApplicationSettings.AppearanceSettings.ViewportBackgroundColor = default
    elif op_user == "Dark":
        r.ApplicationSettings.AppearanceSettings.CommandPromptBackgroundColor = black
        r.ApplicationSettings.AppearanceSettings.CommandPromptTextColor = white
        r.ApplicationSettings.AppearanceSettings.ViewportBackgroundColor = black
    elif op_user == "Green":
        r.ApplicationSettings.AppearanceSettings.CommandPromptBackgroundColor = green
        r.ApplicationSettings.AppearanceSettings.CommandPromptTextColor = black
        r.ApplicationSettings.AppearanceSettings.ViewportBackgroundColor = black
    else:
        print("No appearance chosen")


if __name__ == '__main__':
  main()

@Roberto_da_Silva_Kum Currently the user interface color can not be changed from RhinoCommon but we do have a ticket to implement this:

RH-81908 Expose UI interface colors in a human readable way