.demo-container {
    background: #323232;
}
.annotation-label {
    background-color: #808080;
    color: #fff;
}
.control-category-header {
color: #fff;
text-shadow: none;
}
.howtouse-container {
    background-color: #666666;
}
.howtouse-container div.howtouse-title {
    color: #fff;
}
#howtouse-switch + label {
    background-color: #fff;
}
.howtouse-container div.howtouse-action {
    background-color: #262626;
    color: #fff;
}
.control-anim-seekbar-container .value-label {
    color: #fff;
}
.viewer-title {
    color: #fff;
}

@media screen and (max-width: 767px) {
.control-category-header {
color: #575656;
}
}