By the way, I see the theme has no styling for form fields. You could add this custom CSS also:
html body div.gwolle-gb input[type="button"],
html body div.gwolle-gb input[type="submit"] {
color: #fff; /* white */
background-color: #ca9b52;
border: 1px solid #ba8b42;
}
html body div.gwolle-gb form.gwolle-gb-write div.input input[type="text"],
html body div.gwolle-gb form.gwolle-gb-write div.input input[type="email"],
html body div.gwolle-gb form.gwolle-gb-write div.input input[type="url"],
html body div.gwolle-gb form.gwolle-gb-write div.input textarea,
html body div.gwolle-gb form.gwolle-gb-write div.input select {
border: 1px solid #ca9b52;
}