Better themeing support!!

app/lib/themes.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+require 'singleton'
+require 'yaml'
+
+class Themes
+  include Singleton
+
+  def initialize
+    result = Hash.new
+    Dir.glob(Rails.root.join('app', 'javascript', 'themes', '*', 'theme.yml')) do |path|
+      data = YAML.load_file(path)
+      if data['pack'] && data['name']
+        result[data['name']] = data
+      end
+    end
+    @conf = result
+  end
+
+  def names
+    @conf.keys
+  end
+end