diff --git a/dist/file-icon-square-o.css b/dist/file-icon-square-o.css
new file mode 100644
index 0000000..19b6d07
--- /dev/null
+++ b/dist/file-icon-square-o.css
@@ -0,0 +1,341 @@
+/*!
+ * File Icon Vectors 0.8.1 (https://github.com/dmhendricks/file-icon-vectors)
+ * Copyright 2018 Daniel M. Hendricks (https://www.danhendricks.com)
+ * Licensed under MIT (https://github.com/dmhendricks/file-icon-vectors/blob/master/LICENSE)
+ */
+.fiv-background, .fiv-sqo {
+  background-size: contain;
+  background-position: 50%;
+  background-repeat: no-repeat;
+}
+
+.fiv-size-md {
+  font-size: 2.25em;
+}
+
+.fiv-size-lg {
+  font-size: 3.5em;
+}
+
+.fiv-size-xl {
+  font-size: 4.75em;
+}
+
+.fiv-sqo {
+  position: relative;
+  display: inline-block;
+  line-height: 1em;
+  width: 1em;
+}
+
+.fiv-sqo:before {
+  content: '\00a0';
+}
+
+.fiv-sqo.fiv-icon-3g2 {
+  background-image: url("icons/square-o/3g2.svg");
+}
+
+.fiv-sqo.fiv-icon-3ga {
+  background-image: url("icons/square-o/3ga.svg");
+}
+
+.fiv-sqo.fiv-icon-3gp {
+  background-image: url("icons/square-o/3gp.svg");
+}
+
+.fiv-sqo.fiv-icon-aa {
+  background-image: url("icons/square-o/aa.svg");
+}
+
+.fiv-sqo.fiv-icon-aac {
+  background-image: url("icons/square-o/aac.svg");
+}
+
+.fiv-sqo.fiv-icon-aif {
+  background-image: url("icons/square-o/aif.svg");
+}
+
+.fiv-sqo.fiv-icon-aifc {
+  background-image: url("icons/square-o/aifc.svg");
+}
+
+.fiv-sqo.fiv-icon-aiff {
+  background-image: url("icons/square-o/aiff.svg");
+}
+
+.fiv-sqo.fiv-icon-amr {
+  background-image: url("icons/square-o/amr.svg");
+}
+
+.fiv-sqo.fiv-icon-asf {
+  background-image: url("icons/square-o/asf.svg");
+}
+
+.fiv-sqo.fiv-icon-asx {
+  background-image: url("icons/square-o/asx.svg");
+}
+
+.fiv-sqo.fiv-icon-au {
+  background-image: url("icons/square-o/au.svg");
+}
+
+.fiv-sqo.fiv-icon-aup {
+  background-image: url("icons/square-o/aup.svg");
+}
+
+.fiv-sqo.fiv-icon-avi {
+  background-image: url("icons/square-o/avi.svg");
+}
+
+.fiv-sqo.fiv-icon-blank {
+  background-image: url("icons/square-o/blank.svg");
+}
+
+.fiv-sqo.fiv-icon-bmp {
+  background-image: url("icons/square-o/bmp.svg");
+}
+
+.fiv-sqo.fiv-icon-bpg {
+  background-image: url("icons/square-o/bpg.svg");
+}
+
+.fiv-sqo.fiv-icon-caf {
+  background-image: url("icons/square-o/caf.svg");
+}
+
+.fiv-sqo.fiv-icon-cr2 {
+  background-image: url("icons/square-o/cr2.svg");
+}
+
+.fiv-sqo.fiv-icon-dng {
+  background-image: url("icons/square-o/dng.svg");
+}
+
+.fiv-sqo.fiv-icon-doc {
+  background-image: url("icons/square-o/doc.svg");
+}
+
+.fiv-sqo.fiv-icon-docx {
+  background-image: url("icons/square-o/docx.svg");
+}
+
+.fiv-sqo.fiv-icon-dot {
+  background-image: url("icons/square-o/dot.svg");
+}
+
+.fiv-sqo.fiv-icon-dotx {
+  background-image: url("icons/square-o/dotx.svg");
+}
+
+.fiv-sqo.fiv-icon-flac {
+  background-image: url("icons/square-o/flac.svg");
+}
+
+.fiv-sqo.fiv-icon-folder {
+  background-image: url("icons/square-o/folder.svg");
+}
+
+.fiv-sqo.fiv-icon-gif {
+  background-image: url("icons/square-o/gif.svg");
+}
+
+.fiv-sqo.fiv-icon-iff {
+  background-image: url("icons/square-o/iff.svg");
+}
+
+.fiv-sqo.fiv-icon-image {
+  background-image: url("icons/square-o/image.svg");
+}
+
+.fiv-sqo.fiv-icon-jpe {
+  background-image: url("icons/square-o/jpe.svg");
+}
+
+.fiv-sqo.fiv-icon-jpeg {
+  background-image: url("icons/square-o/jpeg.svg");
+}
+
+.fiv-sqo.fiv-icon-jpg {
+  background-image: url("icons/square-o/jpg.svg");
+}
+
+.fiv-sqo.fiv-icon-m2v {
+  background-image: url("icons/square-o/m2v.svg");
+}
+
+.fiv-sqo.fiv-icon-m3u {
+  background-image: url("icons/square-o/m3u.svg");
+}
+
+.fiv-sqo.fiv-icon-m3u8 {
+  background-image: url("icons/square-o/m3u8.svg");
+}
+
+.fiv-sqo.fiv-icon-m4a {
+  background-image: url("icons/square-o/m4a.svg");
+}
+
+.fiv-sqo.fiv-icon-m4r {
+  background-image: url("icons/square-o/m4r.svg");
+}
+
+.fiv-sqo.fiv-icon-m4v {
+  background-image: url("icons/square-o/m4v.svg");
+}
+
+.fiv-sqo.fiv-icon-mid {
+  background-image: url("icons/square-o/mid.svg");
+}
+
+.fiv-sqo.fiv-icon-midi {
+  background-image: url("icons/square-o/midi.svg");
+}
+
+.fiv-sqo.fiv-icon-mp2 {
+  background-image: url("icons/square-o/mp2.svg");
+}
+
+.fiv-sqo.fiv-icon-mp3 {
+  background-image: url("icons/square-o/mp3.svg");
+}
+
+.fiv-sqo.fiv-icon-mpa {
+  background-image: url("icons/square-o/mpa.svg");
+}
+
+.fiv-sqo.fiv-icon-mpeg {
+  background-image: url("icons/square-o/mpeg.svg");
+}
+
+.fiv-sqo.fiv-icon-mpg {
+  background-image: url("icons/square-o/mpg.svg");
+}
+
+.fiv-sqo.fiv-icon-mpga {
+  background-image: url("icons/square-o/mpga.svg");
+}
+
+.fiv-sqo.fiv-icon-nef {
+  background-image: url("icons/square-o/nef.svg");
+}
+
+.fiv-sqo.fiv-icon-ods {
+  background-image: url("icons/square-o/ods.svg");
+}
+
+.fiv-sqo.fiv-icon-ogg {
+  background-image: url("icons/square-o/ogg.svg");
+}
+
+.fiv-sqo.fiv-icon-ogv {
+  background-image: url("icons/square-o/ogv.svg");
+}
+
+.fiv-sqo.fiv-icon-pdf {
+  background-image: url("icons/square-o/pdf.svg");
+}
+
+.fiv-sqo.fiv-icon-png {
+  background-image: url("icons/square-o/png.svg");
+}
+
+.fiv-sqo.fiv-icon-potx {
+  background-image: url("icons/square-o/potx.svg");
+}
+
+.fiv-sqo.fiv-icon-ppsx {
+  background-image: url("icons/square-o/ppsx.svg");
+}
+
+.fiv-sqo.fiv-icon-ppt {
+  background-image: url("icons/square-o/ppt.svg");
+}
+
+.fiv-sqo.fiv-icon-pptm {
+  background-image: url("icons/square-o/pptm.svg");
+}
+
+.fiv-sqo.fiv-icon-pptx {
+  background-image: url("icons/square-o/pptx.svg");
+}
+
+.fiv-sqo.fiv-icon-psp {
+  background-image: url("icons/square-o/psp.svg");
+}
+
+.fiv-sqo.fiv-icon-qt {
+  background-image: url("icons/square-o/qt.svg");
+}
+
+.fiv-sqo.fiv-icon-ra {
+  background-image: url("icons/square-o/ra.svg");
+}
+
+.fiv-sqo.fiv-icon-raw {
+  background-image: url("icons/square-o/raw.svg");
+}
+
+.fiv-sqo.fiv-icon-rm {
+  background-image: url("icons/square-o/rm.svg");
+}
+
+.fiv-sqo.fiv-icon-tga {
+  background-image: url("icons/square-o/tga.svg");
+}
+
+.fiv-sqo.fiv-icon-tif {
+  background-image: url("icons/square-o/tif.svg");
+}
+
+.fiv-sqo.fiv-icon-tiff {
+  background-image: url("icons/square-o/tiff.svg");
+}
+
+.fiv-sqo.fiv-icon-txt {
+  background-image: url("icons/square-o/txt.svg");
+}
+
+.fiv-sqo.fiv-icon-vob {
+  background-image: url("icons/square-o/vob.svg");
+}
+
+.fiv-sqo.fiv-icon-wav {
+  background-image: url("icons/square-o/wav.svg");
+}
+
+.fiv-sqo.fiv-icon-webm {
+  background-image: url("icons/square-o/webm.svg");
+}
+
+.fiv-sqo.fiv-icon-wma {
+  background-image: url("icons/square-o/wma.svg");
+}
+
+.fiv-sqo.fiv-icon-wmv {
+  background-image: url("icons/square-o/wmv.svg");
+}
+
+.fiv-sqo.fiv-icon-xlm {
+  background-image: url("icons/square-o/xlm.svg");
+}
+
+.fiv-sqo.fiv-icon-xls {
+  background-image: url("icons/square-o/xls.svg");
+}
+
+.fiv-sqo.fiv-icon-xlsm {
+  background-image: url("icons/square-o/xlsm.svg");
+}
+
+.fiv-sqo.fiv-icon-xlt {
+  background-image: url("icons/square-o/xlt.svg");
+}
+
+.fiv-sqo.fiv-icon-xltm {
+  background-image: url("icons/square-o/xltm.svg");
+}
+
+.fiv-sqo.fiv-icon-xltx {
+  background-image: url("icons/square-o/xltx.svg");
+}
diff --git a/dist/file-icon-square-o.min.css b/dist/file-icon-square-o.min.css
new file mode 100644
index 0000000..918d9c2
--- /dev/null
+++ b/dist/file-icon-square-o.min.css
@@ -0,0 +1,5 @@
+/*!
+ * File Icon Vectors 0.8.1 (https://github.com/dmhendricks/file-icon-vectors)
+ * Copyright 2018 Daniel M. Hendricks (https://www.danhendricks.com)
+ * Licensed under MIT (https://github.com/dmhendricks/file-icon-vectors/blob/master/LICENSE)
+ */.fiv-background,.fiv-sqo{background-size:contain;background-position:50%;background-repeat:no-repeat}.fiv-size-md{font-size:2.25em}.fiv-size-lg{font-size:3.5em}.fiv-size-xl{font-size:4.75em}.fiv-sqo{position:relative;display:inline-block;line-height:1em;width:1em}.fiv-sqo:before{content:'\00a0'}.fiv-sqo.fiv-icon-3g2{background-image:url("icons/square-o/3g2.svg")}.fiv-sqo.fiv-icon-3ga{background-image:url("icons/square-o/3ga.svg")}.fiv-sqo.fiv-icon-3gp{background-image:url("icons/square-o/3gp.svg")}.fiv-sqo.fiv-icon-aa{background-image:url("icons/square-o/aa.svg")}.fiv-sqo.fiv-icon-aac{background-image:url("icons/square-o/aac.svg")}.fiv-sqo.fiv-icon-aif{background-image:url("icons/square-o/aif.svg")}.fiv-sqo.fiv-icon-aifc{background-image:url("icons/square-o/aifc.svg")}.fiv-sqo.fiv-icon-aiff{background-image:url("icons/square-o/aiff.svg")}.fiv-sqo.fiv-icon-amr{background-image:url("icons/square-o/amr.svg")}.fiv-sqo.fiv-icon-asf{background-image:url("icons/square-o/asf.svg")}.fiv-sqo.fiv-icon-asx{background-image:url("icons/square-o/asx.svg")}.fiv-sqo.fiv-icon-au{background-image:url("icons/square-o/au.svg")}.fiv-sqo.fiv-icon-aup{background-image:url("icons/square-o/aup.svg")}.fiv-sqo.fiv-icon-avi{background-image:url("icons/square-o/avi.svg")}.fiv-sqo.fiv-icon-blank{background-image:url("icons/square-o/blank.svg")}.fiv-sqo.fiv-icon-bmp{background-image:url("icons/square-o/bmp.svg")}.fiv-sqo.fiv-icon-bpg{background-image:url("icons/square-o/bpg.svg")}.fiv-sqo.fiv-icon-caf{background-image:url("icons/square-o/caf.svg")}.fiv-sqo.fiv-icon-cr2{background-image:url("icons/square-o/cr2.svg")}.fiv-sqo.fiv-icon-dng{background-image:url("icons/square-o/dng.svg")}.fiv-sqo.fiv-icon-doc{background-image:url("icons/square-o/doc.svg")}.fiv-sqo.fiv-icon-docx{background-image:url("icons/square-o/docx.svg")}.fiv-sqo.fiv-icon-dot{background-image:url("icons/square-o/dot.svg")}.fiv-sqo.fiv-icon-dotx{background-image:url("icons/square-o/dotx.svg")}.fiv-sqo.fiv-icon-flac{background-image:url("icons/square-o/flac.svg")}.fiv-sqo.fiv-icon-folder{background-image:url("icons/square-o/folder.svg")}.fiv-sqo.fiv-icon-gif{background-image:url("icons/square-o/gif.svg")}.fiv-sqo.fiv-icon-iff{background-image:url("icons/square-o/iff.svg")}.fiv-sqo.fiv-icon-image{background-image:url("icons/square-o/image.svg")}.fiv-sqo.fiv-icon-jpe{background-image:url("icons/square-o/jpe.svg")}.fiv-sqo.fiv-icon-jpeg{background-image:url("icons/square-o/jpeg.svg")}.fiv-sqo.fiv-icon-jpg{background-image:url("icons/square-o/jpg.svg")}.fiv-sqo.fiv-icon-m2v{background-image:url("icons/square-o/m2v.svg")}.fiv-sqo.fiv-icon-m3u{background-image:url("icons/square-o/m3u.svg")}.fiv-sqo.fiv-icon-m3u8{background-image:url("icons/square-o/m3u8.svg")}.fiv-sqo.fiv-icon-m4a{background-image:url("icons/square-o/m4a.svg")}.fiv-sqo.fiv-icon-m4r{background-image:url("icons/square-o/m4r.svg")}.fiv-sqo.fiv-icon-m4v{background-image:url("icons/square-o/m4v.svg")}.fiv-sqo.fiv-icon-mid{background-image:url("icons/square-o/mid.svg")}.fiv-sqo.fiv-icon-midi{background-image:url("icons/square-o/midi.svg")}.fiv-sqo.fiv-icon-mp2{background-image:url("icons/square-o/mp2.svg")}.fiv-sqo.fiv-icon-mp3{background-image:url("icons/square-o/mp3.svg")}.fiv-sqo.fiv-icon-mpa{background-image:url("icons/square-o/mpa.svg")}.fiv-sqo.fiv-icon-mpeg{background-image:url("icons/square-o/mpeg.svg")}.fiv-sqo.fiv-icon-mpg{background-image:url("icons/square-o/mpg.svg")}.fiv-sqo.fiv-icon-mpga{background-image:url("icons/square-o/mpga.svg")}.fiv-sqo.fiv-icon-nef{background-image:url("icons/square-o/nef.svg")}.fiv-sqo.fiv-icon-ods{background-image:url("icons/square-o/ods.svg")}.fiv-sqo.fiv-icon-ogg{background-image:url("icons/square-o/ogg.svg")}.fiv-sqo.fiv-icon-ogv{background-image:url("icons/square-o/ogv.svg")}.fiv-sqo.fiv-icon-pdf{background-image:url("icons/square-o/pdf.svg")}.fiv-sqo.fiv-icon-png{background-image:url("icons/square-o/png.svg")}.fiv-sqo.fiv-icon-potx{background-image:url("icons/square-o/potx.svg")}.fiv-sqo.fiv-icon-ppsx{background-image:url("icons/square-o/ppsx.svg")}.fiv-sqo.fiv-icon-ppt{background-image:url("icons/square-o/ppt.svg")}.fiv-sqo.fiv-icon-pptm{background-image:url("icons/square-o/pptm.svg")}.fiv-sqo.fiv-icon-pptx{background-image:url("icons/square-o/pptx.svg")}.fiv-sqo.fiv-icon-psp{background-image:url("icons/square-o/psp.svg")}.fiv-sqo.fiv-icon-qt{background-image:url("icons/square-o/qt.svg")}.fiv-sqo.fiv-icon-ra{background-image:url("icons/square-o/ra.svg")}.fiv-sqo.fiv-icon-raw{background-image:url("icons/square-o/raw.svg")}.fiv-sqo.fiv-icon-rm{background-image:url("icons/square-o/rm.svg")}.fiv-sqo.fiv-icon-tga{background-image:url("icons/square-o/tga.svg")}.fiv-sqo.fiv-icon-tif{background-image:url("icons/square-o/tif.svg")}.fiv-sqo.fiv-icon-tiff{background-image:url("icons/square-o/tiff.svg")}.fiv-sqo.fiv-icon-txt{background-image:url("icons/square-o/txt.svg")}.fiv-sqo.fiv-icon-vob{background-image:url("icons/square-o/vob.svg")}.fiv-sqo.fiv-icon-wav{background-image:url("icons/square-o/wav.svg")}.fiv-sqo.fiv-icon-webm{background-image:url("icons/square-o/webm.svg")}.fiv-sqo.fiv-icon-wma{background-image:url("icons/square-o/wma.svg")}.fiv-sqo.fiv-icon-wmv{background-image:url("icons/square-o/wmv.svg")}.fiv-sqo.fiv-icon-xlm{background-image:url("icons/square-o/xlm.svg")}.fiv-sqo.fiv-icon-xls{background-image:url("icons/square-o/xls.svg")}.fiv-sqo.fiv-icon-xlsm{background-image:url("icons/square-o/xlsm.svg")}.fiv-sqo.fiv-icon-xlt{background-image:url("icons/square-o/xlt.svg")}.fiv-sqo.fiv-icon-xltm{background-image:url("icons/square-o/xltm.svg")}.fiv-sqo.fiv-icon-xltx{background-image:url("icons/square-o/xltx.svg")}
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
index 081f93e..84ad92d 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -20,7 +20,7 @@ var notify        = require( 'gulp-notify' );
 const AUTOPREFIXER_BROWSERS = [ 'last 2 version', '> 1%', 'ie >= 9', 'ie_mob >= 10', 'ff >= 30', 'chrome >= 34', 'safari >= 7', 'opera >= 23', 'ios >= 7', 'android >= 4', 'bb >= 10' ];
 
 gulp.task( 'sassTask', function () {
-  gulp.src( [ './src/scss/file-icon-classic.scss', './src/scss/file-icon-vivid.scss' ] )
+  gulp.src( [ './src/scss/file-icon-classic.scss', './src/scss/file-icon-vivid.scss', './src/scss/file-icon-square-o.scss' ] )
     .pipe( sass( {
       outputStyle: 'expanded' } ) )
     .on( 'error', console.error.bind( console ) )
diff --git a/src/scss/_file-icon-square-o-list.scss b/src/scss/_file-icon-square-o-list.scss
new file mode 100644
index 0000000..24a47e7
--- /dev/null
+++ b/src/scss/_file-icon-square-o-list.scss
@@ -0,0 +1,78 @@
+@include file-family(sqo, 1);
+@include file-icon(square-o, sqo, 3g2);
+@include file-icon(square-o, sqo, 3ga);
+@include file-icon(square-o, sqo, 3gp);
+@include file-icon(square-o, sqo, aa);
+@include file-icon(square-o, sqo, aac);
+@include file-icon(square-o, sqo, aif);
+@include file-icon(square-o, sqo, aifc);
+@include file-icon(square-o, sqo, aiff);
+@include file-icon(square-o, sqo, amr);
+@include file-icon(square-o, sqo, asf);
+@include file-icon(square-o, sqo, asx);
+@include file-icon(square-o, sqo, au);
+@include file-icon(square-o, sqo, aup);
+@include file-icon(square-o, sqo, avi);
+@include file-icon(square-o, sqo, blank);
+@include file-icon(square-o, sqo, bmp);
+@include file-icon(square-o, sqo, bpg);
+@include file-icon(square-o, sqo, caf);
+@include file-icon(square-o, sqo, cr2);
+@include file-icon(square-o, sqo, dng);
+@include file-icon(square-o, sqo, doc);
+@include file-icon(square-o, sqo, docx);
+@include file-icon(square-o, sqo, dot);
+@include file-icon(square-o, sqo, dotx);
+@include file-icon(square-o, sqo, flac);
+@include file-icon(square-o, sqo, folder);
+@include file-icon(square-o, sqo, gif);
+@include file-icon(square-o, sqo, iff);
+@include file-icon(square-o, sqo, image);
+@include file-icon(square-o, sqo, jpe);
+@include file-icon(square-o, sqo, jpeg);
+@include file-icon(square-o, sqo, jpg);
+@include file-icon(square-o, sqo, m2v);
+@include file-icon(square-o, sqo, m3u);
+@include file-icon(square-o, sqo, m3u8);
+@include file-icon(square-o, sqo, m4a);
+@include file-icon(square-o, sqo, m4r);
+@include file-icon(square-o, sqo, m4v);
+@include file-icon(square-o, sqo, mid);
+@include file-icon(square-o, sqo, midi);
+@include file-icon(square-o, sqo, mp2);
+@include file-icon(square-o, sqo, mp3);
+@include file-icon(square-o, sqo, mpa);
+@include file-icon(square-o, sqo, mpeg);
+@include file-icon(square-o, sqo, mpg);
+@include file-icon(square-o, sqo, mpga);
+@include file-icon(square-o, sqo, nef);
+@include file-icon(square-o, sqo, ods);
+@include file-icon(square-o, sqo, ogg);
+@include file-icon(square-o, sqo, ogv);
+@include file-icon(square-o, sqo, pdf);
+@include file-icon(square-o, sqo, png);
+@include file-icon(square-o, sqo, potx);
+@include file-icon(square-o, sqo, ppsx);
+@include file-icon(square-o, sqo, ppt);
+@include file-icon(square-o, sqo, pptm);
+@include file-icon(square-o, sqo, pptx);
+@include file-icon(square-o, sqo, psp);
+@include file-icon(square-o, sqo, qt);
+@include file-icon(square-o, sqo, ra);
+@include file-icon(square-o, sqo, raw);
+@include file-icon(square-o, sqo, rm);
+@include file-icon(square-o, sqo, tga);
+@include file-icon(square-o, sqo, tif);
+@include file-icon(square-o, sqo, tiff);
+@include file-icon(square-o, sqo, txt);
+@include file-icon(square-o, sqo, vob);
+@include file-icon(square-o, sqo, wav);
+@include file-icon(square-o, sqo, webm);
+@include file-icon(square-o, sqo, wma);
+@include file-icon(square-o, sqo, wmv);
+@include file-icon(square-o, sqo, xlm);
+@include file-icon(square-o, sqo, xls);
+@include file-icon(square-o, sqo, xlsm);
+@include file-icon(square-o, sqo, xlt);
+@include file-icon(square-o, sqo, xltm);
+@include file-icon(square-o, sqo, xltx);
diff --git a/src/scss/file-icon-square-o.scss b/src/scss/file-icon-square-o.scss
new file mode 100644
index 0000000..97a5633
--- /dev/null
+++ b/src/scss/file-icon-square-o.scss
@@ -0,0 +1,10 @@
+/*!
+ * File Icon Vectors 0.8.1 (https://github.com/dmhendricks/file-icon-vectors)
+ * Copyright 2018 Daniel M. Hendricks (https://www.danhendricks.com)
+ * Licensed under MIT (https://github.com/dmhendricks/file-icon-vectors/blob/master/LICENSE)
+ */
+
+@import "variables";
+@import "file-icon-base";
+@import "file-icon-extra";
+@import "file-icon-square-o-list";