Lead Developer
Like when you hover over the back to top button? That text is pretty important for accessibility reasons (screen readers etc..).
You can always overwrite the function in your child theme or PHP file: https://github.com/tomusborne/GeneratePress/blob/master/inc/template-tags.php#L627-L651
Documentation: http://docs.generatepress.com/
Adding CSS: http://docs.generatepress.com/article/adding-css/
Ongoing Development: https://generatepress.com/ongoing-development