dev.metalisp.survey/public/app.js

(() => {
    'use strict';
    const getStoredTheme = () => localStorage.getItem('theme');
    const getPreferredTheme = () => {
        const storedTheme = getStoredTheme();
        if (storedTheme) {
            return storedTheme;
        }
        return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
    };
    const setTheme = theme => {
        if (theme === 'auto') {
            document.documentElement.setAttribute('data-bs-theme', (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'));
        } else {
            document.documentElement.setAttribute('data-bs-theme', theme);
        }
    };
    setTheme(getPreferredTheme());
})();