WPyogi on "[Theme: Catch Everest] Header and footer bars"

See if adding this to your Custom CSS will do it for you:

#site-generator .site-info {
   padding: 0;
}

#site-generator, #header-menu {
   background-color: #xxxxxx;
}

Also, change these in your CSS:

#site-generator .powered {
    display: none;
}

#site-generator .copyright {
    display: none;
}