FYI: when changing the default theme, make sure to remove the theme KEY from localStorage. This ensures the theme updates to reflect the latest default setting.
themeToggle: {
    isEnabled: true,
    defaultTheme: "light",
},
ShadCN components are optimised for a light and dark mode out of the box. When adding text for new components instead of using harcoded text styles like text-gray-500 make sure to use text-foreground for headers and text-muted-foreground for descriptions. Color related text can be optimised using the light and dark labels from Tailwind. E.g.: 
<span className="text-blue-500 dark:text-blue-300">I'm about to change colors.</span>