add pink theme - for #5664

modules/pref/src/main/Theme.scala

@@ -46,8 +46,8 @@ object Theme extends ThemeObject {
     "green", "marble",
     "green-plastic", "green-glass",
     "grey", "metal",
-    "olive", "purple",
-    "newspaper"
+    "olive", "newspaper",
+    "purple", "pink"
   ) map { name =>
       new Theme(name, colors.getOrElse(name, defaultHexColors))
     }

ui/common/css/vendor/chessground/_board-2d.scss

@@ -20,6 +20,7 @@ $board-files: (
 'metal': 'metal-1024.jpg',
 'maple': 'maple.jpg',
 'newspaper': 'newspaper.png',
+'pink': 'pink-pyramid.png',
 );
 
 @each $color, $file in $board-files {

ui/dasher/css/_board.scss

@@ -90,6 +90,9 @@
     .green-glass {
       background-image: url(../images/board/green-glass.thumbnail.png);
     }
+    .pink {
+      background-image: url(../images/board/pink-pyramid.thumbnail.png);
+    }
   }
   &.d3 {
     $board-files: (