@echo off
echo.
echo --------------------------------------------------
echo     "1"    Start Green Background
echo     "0 "     Turn off Green background
echo --------------------------------------------------
echo.
set /p a= Please input your Choice (1 or 0):
if "%a%"=="1" (
    reg add "HKCU\Control Panel\Colors" /v Window /t REG_SZ /d "202 234 206" /f 
    echo Start Green Background Successfully.
    pause
)else (
    if "%a%"=="2" (
    reg add "HKCU\Control Panel\Colors" /v Window /t REG_SZ /d "255 255 255" /f
    echo Turn off Green background Successfully.
     pause
    )
    )