Sometimes you want to apply custom CSS to change the colour of the setup wizard. For example, if you want to change the colour of the , add this code in the function.php of your theme :

add_action('mvx_vendor_head', 'custom_css_dashboard', 999);
function custom_css_dashboard() { ?>
    <style type="text/css">
        p.wc-setup-actions a.button-primary.button.button-large.button-next {
            background: green !important;
            border-color: green !important;
            text-shadow: 1px 1px green !important;
        }
        input.button-primary.button.button-large.button-next {
            background: green !important;
            border-color: green !important;
            text-shadow: 1px 1px green !important;
        }
        a.button.button-primary.button-large {
            background: green !important;
            border-color: green !important;
            text-shadow: 1px 1px green !important;
        }
    </style>
    <?php
}

The above code will give you modification like this :

For any additional css, you need to add the code after <style type=”text/css”> and before </style>