diff --git a/wp-admin/css/colors-classic.css b/wp-admin/css/colors-classic.css
index 84451674ef..53696ee510 100644
--- a/wp-admin/css/colors-classic.css
+++ b/wp-admin/css/colors-classic.css
@@ -1459,19 +1459,25 @@ div.wp-menu-image {
 
 /* Diff */
 table.diff .diff-deletedline {
-	background-color: #fdd;
+	background-color: #ffe5e6;
+	color: #8b0012;
+	text-decoration: line-through;
 }
 
 table.diff .diff-deletedline del {
-	background-color: #f99;
+	background-color: #ffe5e6;
 }
 
 table.diff .diff-addedline {
-	background-color: #dfd;
+	background-color: #e9f6ea;
 }
 
 table.diff .diff-addedline ins {
-	background-color: #9f9;
+	background-color: #e9f6ea;
+}
+
+#diffsubheader{
+	background-color: #f7f7f7;
 }
 
 #att-info {
diff --git a/wp-admin/css/colors-fresh.css b/wp-admin/css/colors-fresh.css
index 476cda831a..e20d6d499e 100644
--- a/wp-admin/css/colors-fresh.css
+++ b/wp-admin/css/colors-fresh.css
@@ -1353,29 +1353,33 @@ div.wp-menu-image {
 /* Diff */
 table.diff .diff-deletedline {
 	background-color: #ffe5e6;
-	color: #f2001f;
+	color: #8b0012;
 	text-decoration: line-through;
 }
 
 table.diff .diff-deletedline del {
-	background-color: #f99;
+	background-color: #ffe5e6;
 }
 
 table.diff .diff-deletedline-symbol {
-	color: #f2001f;
+	color: #8b0012;
 }
 
 table.diff .diff-addedline {
 	background-color: #e9f6ea;
-	color: #00a500;
+	color: #035a03;
 }
 
 table.diff .diff-addedline-symbol {
-	color: #00a500;
+	color: #035a03;
 }
 
 table.diff .diff-addedline ins {
-	background-color: #9f9;
+	background-color: #e9f6ea;
+}
+
+#diffsubheader{
+	background-color: #f7f7f7;
 }
 
 #att-info {
diff --git a/wp-admin/css/wp-admin.css b/wp-admin/css/wp-admin.css
index ab61e5d2a2..a9c5070c17 100644
--- a/wp-admin/css/wp-admin.css
+++ b/wp-admin/css/wp-admin.css
@@ -3582,7 +3582,7 @@ table.diff .diff-addedline ins {
 }
 
 #diffheader {
-	border-bottom: 2px solid #999;
+	border-bottom: 1px solid #dfdfdf;
 	width: 100%;
 	height: 45px;
 	line-height: 45px;
@@ -3590,8 +3590,7 @@ table.diff .diff-addedline ins {
 }
 
 #diffsubheader {
-	background-color: #eee;
-	border-bottom: 2px solid #999;
+	border-bottom: 1px solid #dfdfdf;
 	width: 100%;
 	height:35px;
 	line-height: 35px;