diff --git a/admin/img/editor/2x/editor-bold@2x.png b/admin/img/editor/2x/editor-bold@2x.png
new file mode 100644
index 00000000..0c75b942
Binary files /dev/null and b/admin/img/editor/2x/editor-bold@2x.png differ
diff --git a/admin/img/editor/2x/editor-code@2x.png b/admin/img/editor/2x/editor-code@2x.png
new file mode 100644
index 00000000..2c62a53f
Binary files /dev/null and b/admin/img/editor/2x/editor-code@2x.png differ
diff --git a/admin/img/editor/2x/editor-heading@2x.png b/admin/img/editor/2x/editor-heading@2x.png
new file mode 100644
index 00000000..0f7e3c2f
Binary files /dev/null and b/admin/img/editor/2x/editor-heading@2x.png differ
diff --git a/admin/img/editor/2x/editor-hr@2x.png b/admin/img/editor/2x/editor-hr@2x.png
new file mode 100644
index 00000000..c050bd4b
Binary files /dev/null and b/admin/img/editor/2x/editor-hr@2x.png differ
diff --git a/admin/img/editor/2x/editor-image@2x.png b/admin/img/editor/2x/editor-image@2x.png
new file mode 100644
index 00000000..fed4923b
Binary files /dev/null and b/admin/img/editor/2x/editor-image@2x.png differ
diff --git a/admin/img/editor/2x/editor-italic@2x.png b/admin/img/editor/2x/editor-italic@2x.png
new file mode 100644
index 00000000..547ecbf6
Binary files /dev/null and b/admin/img/editor/2x/editor-italic@2x.png differ
diff --git a/admin/img/editor/2x/editor-link@2x.png b/admin/img/editor/2x/editor-link@2x.png
new file mode 100644
index 00000000..6728a35a
Binary files /dev/null and b/admin/img/editor/2x/editor-link@2x.png differ
diff --git a/admin/img/editor/2x/editor-olist@2x.png b/admin/img/editor/2x/editor-olist@2x.png
new file mode 100644
index 00000000..b02d566f
Binary files /dev/null and b/admin/img/editor/2x/editor-olist@2x.png differ
diff --git a/admin/img/editor/2x/editor-quote@2x.png b/admin/img/editor/2x/editor-quote@2x.png
new file mode 100644
index 00000000..8d6434a5
Binary files /dev/null and b/admin/img/editor/2x/editor-quote@2x.png differ
diff --git a/admin/img/editor/2x/editor-redo@2x.png b/admin/img/editor/2x/editor-redo@2x.png
new file mode 100644
index 00000000..81477736
Binary files /dev/null and b/admin/img/editor/2x/editor-redo@2x.png differ
diff --git a/admin/img/editor/2x/editor-ulist@2x.png b/admin/img/editor/2x/editor-ulist@2x.png
new file mode 100644
index 00000000..801defcc
Binary files /dev/null and b/admin/img/editor/2x/editor-ulist@2x.png differ
diff --git a/admin/img/editor/2x/editor-undo@2x.png b/admin/img/editor/2x/editor-undo@2x.png
new file mode 100644
index 00000000..7d8ae8c2
Binary files /dev/null and b/admin/img/editor/2x/editor-undo@2x.png differ
diff --git a/admin/img/icons-s2ebed63329.png b/admin/img/icons-s2ebed63329.png
new file mode 100644
index 00000000..1a21b00d
Binary files /dev/null and b/admin/img/icons-s2ebed63329.png differ
diff --git a/admin/img/icons/2x/icon-arrow-down@2x.png b/admin/img/icons/2x/icon-arrow-down@2x.png
new file mode 100644
index 00000000..1fefa5a0
Binary files /dev/null and b/admin/img/icons/2x/icon-arrow-down@2x.png differ
diff --git a/admin/img/icons/2x/icon-arrow-up@2x.png b/admin/img/icons/2x/icon-arrow-up@2x.png
new file mode 100644
index 00000000..b7a7e475
Binary files /dev/null and b/admin/img/icons/2x/icon-arrow-up@2x.png differ
diff --git a/admin/img/icons/2x/icon-delete@2x.png b/admin/img/icons/2x/icon-delete@2x.png
new file mode 100644
index 00000000..a4f0105a
Binary files /dev/null and b/admin/img/icons/2x/icon-delete@2x.png differ
diff --git a/admin/img/icons/2x/icon-edit@2x.png b/admin/img/icons/2x/icon-edit@2x.png
new file mode 100644
index 00000000..f79e5950
Binary files /dev/null and b/admin/img/icons/2x/icon-edit@2x.png differ
diff --git a/admin/img/icons/2x/icon-exlink@2x.png b/admin/img/icons/2x/icon-exlink@2x.png
new file mode 100644
index 00000000..bde0eefb
Binary files /dev/null and b/admin/img/icons/2x/icon-exlink@2x.png differ
diff --git a/admin/img/icons/2x/icon-search@2x.png b/admin/img/icons/2x/icon-search@2x.png
new file mode 100644
index 00000000..e8d7dc5c
Binary files /dev/null and b/admin/img/icons/2x/icon-search@2x.png differ
diff --git a/admin/img/icons/2x/mime-application@2x.png b/admin/img/icons/2x/mime-application@2x.png
new file mode 100644
index 00000000..9df378f5
Binary files /dev/null and b/admin/img/icons/2x/mime-application@2x.png differ
diff --git a/admin/img/icons/2x/mime-archive@2x.png b/admin/img/icons/2x/mime-archive@2x.png
new file mode 100644
index 00000000..697c9de7
Binary files /dev/null and b/admin/img/icons/2x/mime-archive@2x.png differ
diff --git a/admin/img/icons/2x/mime-audio@2x.png b/admin/img/icons/2x/mime-audio@2x.png
new file mode 100644
index 00000000..fbd3767e
Binary files /dev/null and b/admin/img/icons/2x/mime-audio@2x.png differ
diff --git a/admin/img/icons/2x/mime-html@2x.png b/admin/img/icons/2x/mime-html@2x.png
new file mode 100644
index 00000000..438034d2
Binary files /dev/null and b/admin/img/icons/2x/mime-html@2x.png differ
diff --git a/admin/img/icons/2x/mime-image@2x.png b/admin/img/icons/2x/mime-image@2x.png
new file mode 100644
index 00000000..e849e3e4
Binary files /dev/null and b/admin/img/icons/2x/mime-image@2x.png differ
diff --git a/admin/img/icons/2x/mime-office@2x.png b/admin/img/icons/2x/mime-office@2x.png
new file mode 100644
index 00000000..09002c8e
Binary files /dev/null and b/admin/img/icons/2x/mime-office@2x.png differ
diff --git a/admin/img/icons/2x/mime-script@2x.png b/admin/img/icons/2x/mime-script@2x.png
new file mode 100644
index 00000000..ffaf7978
Binary files /dev/null and b/admin/img/icons/2x/mime-script@2x.png differ
diff --git a/admin/img/icons/2x/mime-text@2x.png b/admin/img/icons/2x/mime-text@2x.png
new file mode 100644
index 00000000..83454528
Binary files /dev/null and b/admin/img/icons/2x/mime-text@2x.png differ
diff --git a/admin/img/icons/2x/mime-unknow@2x.png b/admin/img/icons/2x/mime-unknow@2x.png
new file mode 100644
index 00000000..85c94f8d
Binary files /dev/null and b/admin/img/icons/2x/mime-unknow@2x.png differ
diff --git a/admin/img/icons/2x/mime-video@2x.png b/admin/img/icons/2x/mime-video@2x.png
new file mode 100644
index 00000000..8e1a784f
Binary files /dev/null and b/admin/img/icons/2x/mime-video@2x.png differ
diff --git a/admin/scss/components/_retina.scss b/admin/scss/components/_retina.scss
new file mode 100644
index 00000000..76f848ee
--- /dev/null
+++ b/admin/scss/components/_retina.scss
@@ -0,0 +1,12 @@
+@import "compass/css3/background-size";
+
+@mixin image-2x($image, $width, $height) {
+  @media (-webkit-min-device-pixel-ratio: 1.3),
+         (min-resolution: 124.8dpi),
+         (min-resolution: 1.3dppx) {
+      & {
+        background-image: url($image);
+        @include background-size($width $height);
+      }
+  }
+}