Read More Button: Wrong color, format

I have an ugly orange “Read More” button on my posts, rather than the nice white & grey boxed shown in the demo. Can’t find where to customize this except in the Visual Composer > “Post Grid” > “Item Design” > Grid element template, but none of the choices give me a different button design.

I’ve looked all over the Highend Options panels, too.

Help? http://maaspublications.net/blog/