theme 13, theme 14: edited colors for code tag

resources/assets/themes/theme13.less

@@ -1082,6 +1082,12 @@ a.thumbnail.active {
   }
 }
 
+// code tag
+code {
+  background-color: @input-bg-disabled;
+  color: @input-color;
+}
+
 // Specials ===================================================================
 body {
   background: #000 url('theme13/background.jpg') no-repeat top left;

resources/assets/themes/theme14.less

@@ -1082,6 +1082,12 @@ a.thumbnail.active {
   }
 }
 
+// code tag
+code {
+  background-color: @input-bg-disabled;
+  color: @input-color;
+}
+
 // Specials ===================================================================
 body {
   background: #000 url('theme13/background14.jpg') no-repeat top left;