Nothing happens at the moment when clicking the form help: https://tabler-react.com/form-elements (It's next to the zip code box).

<Form.Help message={<><p>ZIP Code must be US or CDN format. You can use an extended ZIP+4 code to determine address more accurately.</p><p class="mb-0"><a href="#">USP ZIP codes lookup tools</a></p></>} />

Most of the modern websites have Dark and Light mode options. I'm thinking of adding dark mode to this portfolio template. Issue is open for discussion and contribution.