Theming: a UI to choose some base colors that are applied to all the site css. CSS compiled outside of asset pipeline.

db/migrate/20140506200235_remove_seed_color_scheme.rb

@@ -0,0 +1,9 @@
+class RemoveSeedColorScheme < ActiveRecord::Migration
+  def up
+    execute "DELETE FROM color_schemes WHERE id = 1"
+    execute "DELETE FROM color_scheme_colors WHERE color_scheme_id = 1"
+  end
+
+  def down
+  end
+end

db/migrate/20140507173327_remove_opacity_from_color_scheme_colors.rb

@@ -0,0 +1,9 @@
+class RemoveOpacityFromColorSchemeColors < ActiveRecord::Migration
+  def up
+    remove_column :color_scheme_colors, :opacity
+  end
+
+  def down
+    add_column :color_scheme_colors, :opacity, :integer, null: false, default: 100
+  end
+end