Index: src/wp-admin/css/colors/_variables.scss
===================================================================
--- src/wp-admin/css/colors/_variables.scss	(revision 26750)
+++ src/wp-admin/css/colors/_variables.scss	(working copy)
@@ -8,6 +8,7 @@
 $icon-color: hsl( hue( $base-color ), 7%, 95% ) !default;
 $highlight-color: #0074a2 !default;
 $notification-color: #d54e21 !default;
+$action-color: #2EA2CC !default;
 
 
 // global
@@ -17,7 +18,7 @@
 $link: #0074a2 !default;
 $link-focus: lighten( $link, 10% ) !default;
 
-$button-color: $highlight-color !default;
+$button-color: $action-color !default;
 $form-checked: $highlight-color !default;
 
 
Index: src/wp-admin/css/colors/ectoplasm/colors.scss
===================================================================
--- src/wp-admin/css/colors/ectoplasm/colors.scss	(revision 0)
+++ src/wp-admin/css/colors/ectoplasm/colors.scss	(working copy)
@@ -0,0 +1,10 @@
+$base-color: #523f6d;
+$icon-color: #ece6f6;
+$action-color: #a3b745;
+$highlight-color: #a3b745;
+$notification-color: #d46f15;
+
+$form-checked: $base-color;
+
+@import "../../colors.css";
+@import "../_admin.scss";
Index: src/wp-admin/css/colors/midnight/colors.scss
===================================================================
--- src/wp-admin/css/colors/midnight/colors.scss	(revision 26750)
+++ src/wp-admin/css/colors/midnight/colors.scss	(working copy)
@@ -1,4 +1,5 @@
 $base-color: #363b3f;
+$action-color: #e14d43;
 $highlight-color: #e14d43;
 $notification-color: #69a8bb;
 
Index: src/wp-admin/css/colors/seaweed/colors.scss
===================================================================
--- src/wp-admin/css/colors/seaweed/colors.scss	(revision 0)
+++ src/wp-admin/css/colors/seaweed/colors.scss	(working copy)
@@ -0,0 +1,10 @@
+$base-color: #15757a;
+$icon-color: #e1f9fa;
+$action-color: #a8c274;
+$highlight-color: #a8c274;
+$notification-color: #e78229;
+
+$form-checked: $base-color;
+
+@import "../../colors.css";
+@import "../_admin.scss";
Index: src/wp-includes/general-template.php
===================================================================
--- src/wp-includes/general-template.php	(revision 26750)
+++ src/wp-includes/general-template.php	(working copy)
@@ -2142,6 +2142,18 @@
 		array( '#25282b', '#363b3f', '#69a8bb', '#e14d43' ),
 		array( 'base' => '#f1f2f3', 'focus' => '#fff', 'current' => '#fff' )
 	);
+
+	wp_admin_css_color( 'seaweed', _x( 'Seaweed', 'admin color scheme' ),
+		admin_url( 'css/colors/seaweed/colors.min.css' ),
+		array( '#10585C', '#15757a', '#a8c274', '#e78229' ),
+		array( 'base' => '#e1f9fa', 'focus' => '#fff', 'current' => '#fff' )
+	);
+
+	wp_admin_css_color( 'ectoplasm', _x( 'Ectoplasm', 'admin color scheme' ),
+		admin_url( 'css/colors/ectoplasm/colors.min.css' ),
+		array( '#413256', '#523f6d', '#a3b745', '#d46f15' ),
+		array( 'base' => '#ece6f6', 'focus' => '#fff', 'current' => '#fff' )
+	);
 }
 
 /**