Hello,

Please add this code to the Theme Settings > Custom CSS > Global:

body .wd-action-btn.wd-style-icon .button {
    background-color: orange;
	  border-radius:5px;
	  color:#ffffff;
    font-size:12px;
}
body .wd-action-btn.wd-style-icon .button:before,
body .wd-action-btn.wd-style-icon .button:after {
    display:none;
}

Best Regards