Hi,
The only ones we supply are name, email, subject and message.
You can make your own by copying ours, you can see the CSS in the main.css
file starting from line 14894 of the theme. You can add your custom codes in Theme Options => Custom CSS.
Ex:
span.wpcf7-form-control-wrap.name:before {
content: "\e94a";
font-family: 'nucleo-interface';
position: absolute;
top: 10px;
left: 15px;
color: #999;
}
span.wpcf7-form-control-wrap.email:before {
content: "\e92e";
font-family: 'nucleo-interface';
position: absolute;
top: 10px;
left: 15px;
color: #999;
}
span.wpcf7-form-control-wrap.subject:before {
content: "\e92c";
font-family: 'nucleo-interface';
position: absolute;
top: 10px;
left: 15px;
color: #999;
}
span.wpcf7-form-control-wrap.message:before {
content: "\e941";
font-family: 'nucleo-interface';
position: absolute;
z-index: 2;
top: 12px;
left: 15px;
color: #999;
}
You can use these supplied icons: http://uplift.swiftideas.com/documentation/icon-mind-icons/ or http://www.swiftideas.com/forums/topic/nucelo-icons-list/#post-295075