Octicon fonts located https://github.com/github/developer.github.com/tree/master/static/shared/css Info from https://github.com/styleguide/css/7.0

octicon.css

@font-face {
  font-family: 'octiconsregular';
  src: url('octicons-regular-webfont.eot');
  src: url('octicons-regular-webfont.eot?#iefix') format('embedded-opentype'),
       url('octicons-regular-webfont.woff') format('woff'),
       url('octicons-regular-webfont.svg#octiconsregular') format('svg');
  font-weight: normal;
  font-style: normal;
}
.octicon {
    font:normal normal 16px octicons;
    line-height:1;
    display:inline-block;
    text-decoration:none;
    -webkit-font-smoothing:antialiased
}
.mega-octicon {
    font:normal normal 32px octicons;
    line-height:1;
    display:inline-block;
    text-decoration:none;
    -webkit-font-smoothing:antialiased
}
.octicon-alert:before {
    content:'\f02d'
}
.octicon-alignment-align:before {
    content:'\f08a'
}
.octicon-alignment-aligned-to:before {
    content:'\f08e'
}
.octicon-alignment-unalign:before {
    content:'\f08b'
}
.octicon-arrow-down:before {
    content:'\f03f'
}
.octicon-arrow-left:before {
    content:'\f040'
}
.octicon-arrow-right:before {
    content:'\f03e'
}
.octicon-arrow-small-down:before {
    content:'\f0a0'
}
.octicon-arrow-small-left:before {
    content:'\f0a1'
}
.octicon-arrow-small-right:before {
    content:'\f071'
}
.octicon-arrow-small-up:before {
    content:'\f09f'
}
.octicon-arrow-up:before {
    content:'\f03d'
}
.octicon-beer:before {
    content:'\f069'
}
.octicon-book:before {
    content:'\f007'
}
.octicon-bookmark:before {
    content:'\f07b'
}
.octicon-broadcast:before {
    content:'\f048'
}
.octicon-browser:before {
    content:'\f0c5'
}
.octicon-bug:before {
    content:'\f091'
}
.octicon-calendar:before {
    content:'\f068'
}
.octicon-check:before {
    content:'\f03a'
}
.octicon-checklist:before {
    content:'\f076'
}
.octicon-chevron-down:before {
    content:'\f0a3'
}
.octicon-chevron-left:before {
    content:'\f0a4'
}
.octicon-chevron-right:before {
    content:'\f078'
}
.octicon-chevron-up:before {
    content:'\f0a2'
}
.octicon-circle-slash:before {
    content:'\f084'
}
.octicon-clippy:before {
    content:'\f035'
}
.octicon-clock:before {
    content:'\f046'
}
.octicon-cloud-download:before {
    content:'\f00b'
}
.octicon-cloud-upload:before {
    content:'\f00c'
}
.octicon-code:before {
    content:'\f05f'
}
.octicon-color-mode:before {
    content:'\f065'
}
.octicon-comment:before {
    content:'\f02b'
}
.octicon-comment-add:before {
    content:'\f06f'
}
.octicon-comment-discussion:before {
    content:'\f04f'
}
.octicon-credit-card:before {
    content:'\f045'
}
.octicon-dash:before {
    content:'\f0ca'
}
.octicon-dashboard:before {
    content:'\f07d'
}
.octicon-database:before {
    content:'\f096'
}
.octicon-device-camera:before {
    content:'\f056'
}
.octicon-device-camera-video:before {
    content:'\f057'
}
.octicon-device-desktop:before {
    content:'\f27c'
}
.octicon-device-mobile:before {
    content:'\f038'
}
.octicon-diff:before {
    content:'\f04d'
}
.octicon-diff-added:before {
    content:'\f06b'
}
.octicon-diff-ignored:before {
    content:'\f099'
}
.octicon-diff-modified:before {
    content:'\f06d'
}
.octicon-diff-removed:before {
    content:'\f06c'
}
.octicon-diff-renamed:before {
    content:'\f06e'
}
.octicon-ellipsis:before {
    content:'\f09a'
}
.octicon-eye:before {
    content:'\f04e'
}
.octicon-eye-unwatch:before {
    content:'\f01e'
}
.octicon-eye-watch:before {
    content:'\f01d'
}
.octicon-file-add:before {
    content:'\f086'
}
.octicon-file-binary:before {
    content:'\f094'
}
.octicon-file-code:before {
    content:'\f010'
}
.octicon-file-directory:before {
    content:'\f016'
}
.octicon-file-directory-create:before {
    content:'\f095'
}
.octicon-file-media:before {
    content:'\f012'
}
.octicon-file-pdf:before {
    content:'\f014'
}
.octicon-file-submodule:before {
    content:'\f017'
}
.octicon-file-symlink-directory:before {
    content:'\f0b1'
}
.octicon-file-symlink-file:before {
    content:'\f0b0'
}
.octicon-file-text:before {
    content:'\f011'
}
.octicon-file-zip:before {
    content:'\f013'
}
.octicon-fold:before {
    content:'\f0cc'
}
.octicon-gear:before {
    content:'\f02f'
}
.octicon-gift:before {
    content:'\f042'
}
.octicon-gist:before {
    content:'\f00e'
}
.octicon-gist-fork:before {
    content:'\f079'
}
.octicon-gist-new:before {
    content:'\f07a'
}
.octicon-gist-private:before {
    content:'\f00f'
}
.octicon-gist-secret:before {
    content:'\f08c'
}
.octicon-git-branch:before {
    content:'\f020'
}
.octicon-git-branch-create:before {
    content:'\f098'
}
.octicon-git-branch-delete:before {
    content:'\f09b'
}
.octicon-git-commit:before {
    content:'\f01f'
}
.octicon-git-compare:before {
    content:'\f0ac'
}
.octicon-git-fork-private:before {
    content:'\f021'
}
.octicon-git-merge:before {
    content:'\f023'
}
.octicon-git-pull-request:before {
    content:'\f009'
}
.octicon-git-pull-request-abandoned:before {
    content:'\f090'
}
.octicon-globe:before {
    content:'\f0b6'
}
.octicon-graph:before {
    content:'\f043'
}
.octicon-heart:before {
    content:'\2665'
}
.octicon-history:before {
    content:'\f07e'
}
.octicon-home:before {
    content:'\f08d'
}
.octicon-horizontal-rule:before {
    content:'\f070'
}
.octicon-hourglass:before {
    content:'\f09e'
}
.octicon-hubot:before {
    content:'\f09d'
}
.octicon-info:before {
    content:'\f059'
}
.octicon-issue-closed:before {
    content:'\f028'
}
.octicon-issue-opened:before {
    content:'\f026'
}
.octicon-issue-reopened:before {
    content:'\f027'
}
.octicon-jersey:before {
    content:'\f019'
}
.octicon-jump-down:before {
    content:'\f072'
}
.octicon-jump-left:before {
    content:'\f0a5'
}
.octicon-jump-right:before {
    content:'\f0a6'
}
.octicon-jump-up:before {
    content:'\f073'
}
.octicon-key:before {
    content:'\f049'
}
.octicon-keyboard:before {
    content:'\f00d'
}
.octicon-light-bulb:before {
    content:'\f000'
}
.octicon-link:before {
    content:'\f05c'
}
.octicon-link-external:before {
    content:'\f07f'
}
.octicon-list-ordered:before {
    content:'\f062'
}
.octicon-list-unordered:before {
    content:'\f061'
}
.octicon-location:before {
    content:'\f060'
}
.octicon-lock:before {
    content:'\f06a'
}
.octicon-log-in:before {
    content:'\f036'
}
.octicon-log-out:before {
    content:'\f032'
}
.octicon-logo-github:before {
    content:'\f092'
}
.octicon-mail:before {
    content:'\f03b'
}
.octicon-mail-read:before {
    content:'\f03c'
}
.octicon-mail-reply:before {
    content:'\f051'
}
.octicon-mark-github:before {
    content:'\f00a'
}
.octicon-mark-twitter:before {
    content:'\f0ae'
}
.octicon-markdown:before {
    content:'\f0c9'
}
.octicon-megaphone:before {
    content:'\f077'
}
.octicon-mention:before {
    content:'\f0be'
}
.octicon-microscope:before {
    content:'\f089'
}
.octicon-milestone:before {
    content:'\f075'
}
.octicon-mirror-private:before {
    content:'\f025'
}
.octicon-mirror-public:before {
    content:'\f024'
}
.octicon-move-down:before {
    content:'\f0a8'
}
.octicon-move-left:before {
    content:'\f074'
}
.octicon-move-right:before {
    content:'\f0a9'
}
.octicon-move-up:before {
    content:'\f0a7'
}
.octicon-mute:before {
    content:'\f080'
}
.octicon-mute-video:before {
    content:'\f0b8'
}
.octicon-no-newline:before {
    content:'\f09c'
}
.octicon-octoface:before {
    content:'\f008'
}
.octicon-organization:before {
    content:'\f037'
}
.octicon-package:before {
    content:'\f0c4'
}
.octicon-pencil:before {
    content:'\f058'
}
.octicon-person:before {
    content:'\f018'
}
.octicon-person-add:before {
    content:'\f01a'
}
.octicon-person-follow:before {
    content:'\f01c'
}
.octicon-person-remove:before {
    content:'\f01b'
}
.octicon-pin:before {
    content:'\f041'
}
.octicon-playback-fast-forward:before {
    content:'\f0bd'
}
.octicon-playback-pause:before {
    content:'\f0bb'
}
.octicon-playback-play:before {
    content:'\f0bf'
}
.octicon-playback-rewind:before {
    content:'\f0bc'
}
.octicon-plus:before {
    content:'\f05d'
}
.octicon-podium:before {
    content:'\f0af'
}
.octicon-primitive-dot:before {
    content:'\f052'
}
.octicon-primitive-square:before {
    content:'\f053'
}
.octicon-pulse:before {
    content:'\f085'
}
.octicon-puzzle:before {
    content:'\f0c0'
}
.octicon-question:before {
    content:'\f02c'
}
.octicon-quote:before {
    content:'\f063'
}
.octicon-radio-tower:before {
    content:'\f030'
}
.octicon-remove-close:before {
    content:'\f050'
}
.octicon-repo:before {
    content:'\f001'
}
.octicon-repo-clone:before {
    content:'\f04c'
}
.octicon-repo-create:before {
    content:'\f003'
}
.octicon-repo-delete:before {
    content:'\f004'
}
.octicon-repo-force-push:before {
    content:'\f04a'
}
.octicon-repo-forked:before {
    content:'\f002'
}
.octicon-repo-pull:before {
    content:'\f006'
}
.octicon-repo-push:before {
    content:'\f005'
}
.octicon-repo-sync:before {
    content:'\f04b'
}
.octicon-rocket:before {
    content:'\f033'
}
.octicon-rss:before {
    content:'\f034'
}
.octicon-ruby:before {
    content:'\f047'
}
.octicon-screen-full:before {
    content:'\f066'
}
.octicon-screen-normal:before {
    content:'\f067'
}
.octicon-search:before {
    content:'\f02e'
}
.octicon-search-save:before {
    content:'\f0cb'
}
.octicon-server:before {
    content:'\f097'
}
.octicon-settings:before {
    content:'\f07c'
}
.octicon-split:before {
    content:'\f0c6'
}
.octicon-squirrel:before {
    content:'\f0b2'
}
.octicon-star:before {
    content:'\f02a'
}
.octicon-star-add:before {
    content:'\f082'
}
.octicon-star-delete:before {
    content:'\f083'
}
.octicon-steps:before {
    content:'\f0c7'
}
.octicon-stop:before {
    content:'\f08f'
}
.octicon-sync:before {
    content:'\f087'
}
.octicon-tag:before {
    content:'\f015'
}
.octicon-tag-add:before {
    content:'\f054'
}
.octicon-tag-remove:before {
    content:'\f055'
}
.octicon-telescope:before {
    content:'\f088'
}
.octicon-terminal:before {
    content:'\f0c8'
}
.octicon-three-bars:before {
    content:'\f05e'
}
.octicon-tools:before {
    content:'\f031'
}
.octicon-triangle-down:before {
    content:'\f05b'
}
.octicon-triangle-left:before {
    content:'\f044'
}
.octicon-triangle-right:before {
    content:'\f05a'
}
.octicon-triangle-up:before {
    content:'\f0aa'
}
.octicon-unfold:before {
    content:'\f039'
}
.octicon-unmute:before {
    content:'\f0ba'
}
.octicon-unmute-video:before {
    content:'\f0b9'
}
.octicon-versions:before {
    content:'\f064'
}
.octicon-x:before {
    content:'\f081'
}
.octicon-zap:before {
    content:'\26A1'
}