Add Gitlab::Themes module; remove Gitlab::Theme

Now we can simply loop through all themes, among other things.

This also removes the `dark_theme` / `light_theme` classes and the
`theme_type` helper, since they weren't used anywhere.

1 files changed, 3 insertions, 3 deletions

diff --git a/spec/features/profiles/preferences_spec.rb b/spec/features/profiles/preferences_spec.rb
index 0e033652a9c..7bbb591a4ec 100644
--- a/spec/features/profiles/preferences_spec.rb
+++ b/spec/features/profiles/preferences_spec.rb
@@ -8,14 +8,14 @@ describe 'Profile > Preferences' do
   end
 
   describe 'User changes their application theme', js: true do
-    let(:default_class) { Gitlab::Theme.css_class_by_id(nil) }
-    let(:theme_5_class) { Gitlab::Theme.css_class_by_id(5) }
+    let(:default) { Gitlab::Themes.default }
+    let(:theme)   { Gitlab::Themes.by_id(5) }
 
     before do
       visit profile_preferences_path
     end
 
-    it 'changes immediately' do
+    it 'reflects the changes immediately' do
       expect(page).to have_selector("body.#{default.css_class}")
 
       choose "user_theme_id_#{theme.id}"