Sagar Jadhav

@assilemel Go to the banner content page and paste following markup.

Marvy is incredibly spacious<br> WordPress Theme with a clean <strong>responsive</strong> design<br>
<a class="button invert" href="#YOUR_URL">Download Now</a>

Hope this helps you. Thanks

You can create a child theme and add above css code in style.css. It should work as expected.

Thanks

Hello @ins1d3,
Add following code to menu color –

.primary-menu a:hover,
.main-navigation .current_page_item > a,
.main-navigation .current-menu-item > a,
.main-navigation .current_page_ancestor > a {
    color: #c5c5c5;
}

Add following code to change button color –
.button, input[type=submit], input[type=button], #submit {background-color: #5f4b8b;}

Hope this helps you.

Thanks