nextcloud-server/apps/federatedfilesharing/css/settings-personal.css

#fileSharingSettings img {
	cursor: pointer;
}

#fileSharingSettings xmp {
	margin-top: 0;
	white-space: pre-wrap;
}

#fileSharingSettings .icon {
	background-size: 16px 16px;
	display: inline-block;
	position: relative;
	top: 3px;
	margin-left: 5px;
}

[class^="social-"], [class*=" social-"] {
	background-repeat: no-repeat;
	background-position: 2px;
	min-width: 16px;
	min-height: 16px;
	padding-left: 29px;
	background-size: 24px;
}

.social-gnu {
	background-image: url('../img/social-gnu.svg');
}
.social-diaspora {
	background-image: url('../img/social-diaspora.svg');
}
.social-twitter {
	background-image: url('../img/social-twitter.svg');
}
.social-facebook {
	background-image: url('../img/social-facebook.svg');
}
.social-googleplus {
	background-image: url('../img/social-googleplus.svg');
}