Hi Lia,
You’re right, it seems the default color has to be adjusted. Thank you for your precious feedback. This issue will be fixed in the next update.
Waiting the update, simply add the following code snippet to your website:
/**
* TEMPORARY FIX: Text White in Cover Block
*/
.wp-block-cover__inner-container .has-text-color {
color: #FFF !important;
}
To add this code snippet to your site, we recommend that you paste it to the Custom CSS panel of your WordPress Customizer. Just go to your dashboard and navigate to “Appearance > Customize > Additional CSS”.
Pasting your code snippet there should do the trick for you.
Also, it’s important to remember that we share snippet only to solve issues with our theme.
We’ll be back to you as soon as the update is available.
Regards,