function onLoad() {
var themeSelector = document.getElementById('themeSelector'); for (var themeName in themeMap) { var opt = document.createElement('option'); opt.value = themeName; opt.innerHTML = capitalizeFirstLetter(themeName); themeSelector.appendChild(opt); } if (localStorage.getItem('theme') != null) { themeSelector.value = localStorage.getItem('theme'); toggleTheme(); }
}
function toggleTheme() {
var themeName = themeSelector.value; localStorage.setItem('theme', themeName); var element = document.getElementsByTagName('html')[0]; changeTheme(element, themeMap[themeName]);
}
function changeTheme(element, theme) {
element.style.setProperty("--primary-background-color", theme['background-color']); element.style.setProperty("--primary-text-color", theme['text-color']); element.style.setProperty("--primary-highlight-color", theme['highlight-color']);
}
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}