diff --git a/wp-includes/css/editor.dev.css b/wp-includes/css/editor.dev.css
index 6e7e4c9631..97a7c11f69 100644
--- a/wp-includes/css/editor.dev.css
+++ b/wp-includes/css/editor.dev.css
@@ -687,10 +687,10 @@
 .wp_themeSkin .mceButtonActive span.mce_bullist,
 .wp_themeSkin .mceSplitButton:hover span.mce_bullist {background-position:-40px 0}
 
-.wp_themeSkin span.mce_numlist {background-position:-61px -20px}
+.wp_themeSkin span.mce_numlist {background-position:-60px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_numlist,
 .wp_themeSkin .mceButtonActive span.mce_numlist,
-.wp_themeSkin .mceSplitButton:hover span.mce_numlist {background-position:-61px 0}
+.wp_themeSkin .mceSplitButton:hover span.mce_numlist {background-position:-60px 0}
 
 .wp_themeSkin span.mce_blockquote {background-position:-80px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_blockquote,
@@ -700,65 +700,65 @@
 .wp_themeSkin .mceButtonEnabled:hover span.mce_charmap,
 .wp_themeSkin .mceButtonActive span.mce_charmap {background-position:-420px 0}
 
-.wp_themeSkin span.mce_bold {background-position:-1px -20px}
+.wp_themeSkin span.mce_bold {background-position:0 -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_bold,
-.wp_themeSkin .mceButtonActive span.mce_bold {background-position:-1px 0}
+.wp_themeSkin .mceButtonActive span.mce_bold {background-position:0 0}
 
-.wp_themeSkin span.mce_italic {background-position:-21px -20px}
+.wp_themeSkin span.mce_italic {background-position:-20px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_italic,
-.wp_themeSkin .mceButtonActive span.mce_italic {background-position:-21px 0}
+.wp_themeSkin .mceButtonActive span.mce_italic {background-position:-20px 0}
 
-.wp_themeSkin span.mce_underline {background-position:-280px -19px}
+.wp_themeSkin span.mce_underline {background-position:-280px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_underline,
-.wp_themeSkin .mceButtonActive span.mce_underline {background-position:-280px 1px}
+.wp_themeSkin .mceButtonActive span.mce_underline {background-position:-280px 0}
 
-.wp_themeSkin span.mce_justifyleft {background-position:-100px -19px}
+.wp_themeSkin span.mce_justifyleft {background-position:-100px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_justifyleft,
-.wp_themeSkin .mceButtonActive span.mce_justifyleft {background-position:-100px 1px}
+.wp_themeSkin .mceButtonActive span.mce_justifyleft {background-position:-100px 0}
 
-.wp_themeSkin span.mce_justifyright {background-position:-141px -19px}
+.wp_themeSkin span.mce_justifyright {background-position:-140px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_justifyright,
-.wp_themeSkin .mceButtonActive span.mce_justifyright {background-position:-141px 1px}
+.wp_themeSkin .mceButtonActive span.mce_justifyright {background-position:-140px 0}
 
-.wp_themeSkin span.mce_justifycenter {background-position:-120px -19px}
+.wp_themeSkin span.mce_justifycenter {background-position:-120px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_justifycenter,
-.wp_themeSkin .mceButtonActive span.mce_justifycenter {background-position:-120px 1px}
+.wp_themeSkin .mceButtonActive span.mce_justifycenter {background-position:-120px 0}
 
-.wp_themeSkin span.mce_justifyfull {background-position:-300px -19px}
+.wp_themeSkin span.mce_justifyfull {background-position:-300px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_justifyfull,
-.wp_themeSkin .mceButtonActive span.mce_justifyfull {background-position:-300px 1px}
+.wp_themeSkin .mceButtonActive span.mce_justifyfull {background-position:-300px 0}
 
-.wp_themeSkin span.mce_indent {background-position:-461px -19px}
+.wp_themeSkin span.mce_indent {background-position:-460px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_indent,
-.wp_themeSkin .mceButtonActive span.mce_indent {background-position:-461px 1px}
+.wp_themeSkin .mceButtonActive span.mce_indent {background-position:-460px 0}
 
-.wp_themeSkin span.mce_outdent {background-position:-440px -19px}
+.wp_themeSkin span.mce_outdent {background-position:-440px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_outdent,
-.wp_themeSkin .mceButtonActive span.mce_outdent {background-position:-440px 1px}
+.wp_themeSkin .mceButtonActive span.mce_outdent {background-position:-440px 0}
 
-.wp_themeSkin span.mce_link {background-position:-161px -20px}
+.wp_themeSkin span.mce_link {background-position:-160px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_link,
-.wp_themeSkin .mceButtonActive span.mce_link {background-position:-161px 0}
+.wp_themeSkin .mceButtonActive span.mce_link {background-position:-160px 0}
 
 .wp_themeSkin span.mce_unlink {background-position:-180px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_unlink,
 .wp_themeSkin .mceButtonActive span.mce_unlink {background-position:-180px 0}
 
-.wp_themeSkin span.mce_help {background-position:-521px -20px}
+.wp_themeSkin span.mce_help {background-position:-520px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_help,
-.wp_themeSkin .mceButtonActive span.mce_help {background-position:-521px 0}
+.wp_themeSkin .mceButtonActive span.mce_help {background-position:-520px 0}
 
-.wp_themeSkin span.mce_removeformat {background-position:-381px -20px}
+.wp_themeSkin span.mce_removeformat {background-position:-380px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_removeformat,
-.wp_themeSkin .mceButtonActive span.mce_removeformat {background-position:-381px 0}
+.wp_themeSkin .mceButtonActive span.mce_removeformat {background-position:-380px 0}
 
-.wp_themeSkin span.mce_strikethrough {background-position:-540px -18px;}
+.wp_themeSkin span.mce_strikethrough {background-position:-540px -20px;}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_strikethrough,
 .wp_themeSkin .mceButtonActive span.mce_strikethrough {background-position:-540px 0}
 
-.wp_themeSkin .mceSplitButton .mce_forecolor span.mce_forecolor {background-position:-321px -22px}
+.wp_themeSkin .mceSplitButton .mce_forecolor span.mce_forecolor {background-position:-320px -20px}
 .wp_themeSkin .mceSplitButtonEnabled:hover span.mce_forecolor,
-.wp_themeSkin .mceSplitButtonActive span.mce_forecolor {background-position:-321px -2px}
+.wp_themeSkin .mceSplitButtonActive span.mce_forecolor {background-position:-320px 0}
 
 .wp_themeSkin .mce_forecolorpicker {background-position:-320px -20px}
 
@@ -771,9 +771,9 @@
 .wp_themeSkin .mceButtonEnabled:hover span.mce_wp_fullscreen,
 .wp_themeSkin .mceButtonActive span.mce_wp_fullscreen {background-position:-240px 0}
 
-.wp_themeSkin span.mce_media {background-position:-401px -20px}
+.wp_themeSkin span.mce_media {background-position:-400px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_media,
-.wp_themeSkin .mceButtonActive span.mce_media {background-position:-401px 0}
+.wp_themeSkin .mceButtonActive span.mce_media {background-position:-400px 0}
 
 .wp_themeSkin span.mce_pastetext {background-position:-340px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_pastetext,
@@ -783,23 +783,23 @@
 .wp_themeSkin .mceButtonEnabled:hover span.mce_pasteword,
 .wp_themeSkin .mceButtonActive span.mce_pasteword {background-position:-360px 0}
 
-.wp_themeSkin span.mce_spellchecker {background-position:-220px -19px}
+.wp_themeSkin span.mce_spellchecker {background-position:-220px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_spellchecker,
 .wp_themeSkin .mceSplitButtonEnabled:hover span.mce_spellchecker,
 .wp_themeSkin .mceButtonActive span.mce_spellchecker,
-.wp_themeSkin .mceSplitButtonActive span.mce_spellchecker {background-position:-220px 1px}
+.wp_themeSkin .mceSplitButtonActive span.mce_spellchecker {background-position:-220px 0}
 
-.wp_themeSkin span.mce_wp_help {background-position:-521px -20px}
+.wp_themeSkin span.mce_wp_help {background-position:-520px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_wp_help,
-.wp_themeSkin .mceButtonActive span.mce_wp_help {background-position:-521px 0}
+.wp_themeSkin .mceButtonActive span.mce_wp_help {background-position:-520px 0}
 
 .wp_themeSkin span.mce_wp_adv {background-position:-260px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_wp_adv,
 .wp_themeSkin .mceButtonActive span.mce_wp_adv {background-position:-260px 0}
 
-.wp_themeSkin span.mce_wp_more {background-position:-201px -20px}
+.wp_themeSkin span.mce_wp_more {background-position:-200px -20px}
 .wp_themeSkin .mceButtonEnabled:hover span.mce_wp_more,
-.wp_themeSkin .mceButtonActive span.mce_wp_more {background-position:-201px 0}
+.wp_themeSkin .mceButtonActive span.mce_wp_more {background-position:-200px 0}
 
 /* Default icons */
 .wp_themeSkin span.mce_cleanup {background-position:-380px -20px}
diff --git a/wp-includes/images/wpicons-2x.png b/wp-includes/images/wpicons-2x.png
index 2fd706b0a5..078626019e 100644
Binary files a/wp-includes/images/wpicons-2x.png and b/wp-includes/images/wpicons-2x.png differ
diff --git a/wp-includes/images/wpicons.png b/wp-includes/images/wpicons.png
index 17c2eee316..251ed8c550 100644
Binary files a/wp-includes/images/wpicons.png and b/wp-includes/images/wpicons.png differ