other social network icon

hello
when can i edit a social netowrk plz
exemple: replace vimeo to apple icon, for my application
change title and other
my css

/* Social Profiles */
.social-icons {
	float: left;
}
.social-icons ul {
	margin: -10px 0 0;
	float: right;
}
.social-icons ul li {
	margin-top: 10px;
	float: left;
	padding-right: 1px;
}
.social-icons ul li a {
	display: inline-block;
	font-family: 'FontAwesome';
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	padding: 2px 3px;
	border-radius: 2px;
	font-size: 21px;
	color: #d0d0d0;
	-webkit-transition: all 0.3s ease-out;
		 -moz-transition: all 0.3s ease-out;
			-ms-transition: all 0.3s ease-out;
			 -o-transition: all 0.3s ease-out;
					transition: all 0.3s ease-out;
	vertical-align: top;
	text-align: center;
	font-style: normal;
	font-weight: normal;
	font-variant: normal;
	line-height: 1;
	text-decoration: inherit;
	text-transform: none;
	speak: none;
}
.social-icons ul li a:hover {
	color: #fff !important;
}
.social-icons ul li.facebook a:before {
	content: '\f09a';
}
.social-icons ul li.facebook a:hover {
	background: #3B5998;
}
.social-icons ul li.twitter a:before {
	content: '\f099';
}
.social-icons ul li.twitter a:hover {
	background: #00aced;
}
.social-icons ul li.google-plus a:before {
	content: '\f0d5';
}
.social-icons ul li.google-plus a:hover {
	background: #cd4132;
}
.social-icons ul li.pinterest a:before {
	content: '\f231';
}
.social-icons ul li.pinterest a:hover {
	background: #cb2027;
}
.social-icons ul li.linkedin a:before {
	content: '\f0e1';
}
.social-icons ul li.linkedin a:hover {
	background: #005a87;
}
.social-icons ul li.tumblr a:before {
	content: '\f173';
}
.social-icons ul li.tumblr a:hover {
	background: #2b4761;
}
/* APPLE */
.social-icons ul li.vimeo a:before {
	content: '\f179';
}
.social-icons ul li.vimeo a:hover {
	background: #1bb7ea;
}
.social-icons ul li.instagram a:before {
	content: '\f16d';
}
.social-icons ul li.instagram a:hover {
	background: #517fa4;
}
.social-icons ul li.flickr a:before {
	content: '\f16e';
}
.social-icons ul li.flickr a:hover {
	background: #0063db;
}
.social-icons ul li.youtube a:before {
	content: '\f16a';
}
.social-icons ul li.youtube a:hover {
	background: #cd4132;
}
.social-icons ul li.rss a:before {
	content: '\f09e';
}
.social-icons ul li.rss a:hover {
	background: #fc7216;
}

thx it’s ok
i have edit
header-extensions.php
theme-options.php
style.css

all is ok