Custom themes are now loaded from "/themes" directory from project root. The themes provided by Redmine (alternate and classic) remains in "app/assets/themes" (#39111).

git-svn-id: https://svn.redmine.org/redmine/trunk@22708 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/themes.rb

@@ -148,7 +148,7 @@ module Redmine
     end
 
     def self.scan_themes
-      dirs = Dir.glob("#{Rails.root}/app/assets/themes/*").select do |f|
+      dirs = Dir.glob(["#{Rails.root}/app/assets/themes/*", "#{Rails.root}/themes/*"]).select do |f|
         # A theme should at least override application.css
         File.directory?(f) && File.exist?("#{f}/stylesheets/application.css")
       end