docs/rest-endpoints/api-docs.css

.panel-default > .panel-heading.GET{
    background-color: rgba(54, 180, 255, 0.42);
    background-image: none;
}
.panel-default > .panel-heading.POST {
    background-color: rgba(0, 128, 0, 0.38);
    background-image: none;
}
.panel-default > .panel-heading.PUT{
    background-color: rgba(255, 165, 0, 0.41);
    background-image: none;
}
.panel-default > .panel-heading.DELETE {
    background-color: rgba(255, 0, 0, 0.29);
    background-image: none;
}

.panel-heading a.collapse-button:after {
    font-family:'Glyphicons Halflings';
    content:"\e114";
    float: right;
    color: grey;
}
.panel-heading a.collapse-button.collapsed:after {
    content:"\e080";
}