npm install darkreader

// فعال کردن
DarkReader.enable({
    brightness: 100,
    contrast: 90,
    sepia: 10
});
// غیر فعال کردن 
DarkReader.disable();

import {
    enable as enableDarkMode,
    disable as disableDarkMode,
} from 'darkreader';
// فعال کردن
enableDarkMode({
    brightness: 100,
    contrast: 90,
    sepia: 10,
});
// غیر فعال کردن
disableDarkMode();

var defaultTheme = {
        mode: 1,  // (0 1) for enabling or disabling dark mode
        brightness: 100,
        contrast: 100,
        grayscale: 0,
        sepia: 0,
        useFont: false,
        fontFamily: '', // add custom font
        textStroke: 0,
        engine: ThemeEngines.dynamicTheme,
        stylesheet: '',  // add custom css styles
    };