FIX: Imported themes should set their color scheme automatically

app/models/remote_theme.rb

@@ -177,6 +177,7 @@ class RemoteTheme < ActiveRecord::Base
 
   def update_theme_color_schemes(theme, schemes)
     missing_scheme_names = Hash[*theme.color_schemes.pluck(:name, :id).flatten]
+    ordered_schemes = []
 
     schemes&.each do |name, colors|
       missing_scheme_names.delete(name)
@@ -189,12 +190,14 @@ class RemoteTheme < ActiveRecord::Base
             theme.notify_color_change(c)
           end
         end
+        ordered_schemes << existing
       else
         scheme = theme.color_schemes.build(name: name)
         ColorScheme.base.colors_hashes.each do |color|
           override = normalize_override(colors[color[:name]])
           scheme.color_scheme_colors << ColorSchemeColor.new(name: color[:name], hex: override || color[:hex])
         end
+        ordered_schemes << scheme
       end
     end
 
@@ -202,6 +205,10 @@ class RemoteTheme < ActiveRecord::Base
       ColorScheme.where(id: missing_scheme_names.values).delete_all
       # we may have stuff pointed at the incorrect scheme?
     end
+
+    if theme.new_record?
+      theme.color_scheme = ordered_schemes.first
+    end
   end
 
   def github_diff_link

spec/models/remote_theme_spec.rb

@@ -102,6 +102,9 @@ describe RemoteTheme do
       expect(scheme.name).to eq("Amazing")
       expect(scheme.colors.find_by(name: 'love').hex).to eq('fafafa')
 
+      expect(@theme.color_scheme_id).to eq(scheme.id)
+      @theme.update(color_scheme_id: nil)
+
       File.write("#{initial_repo}/common/header.html", "I AM UPDATED")
       File.write("#{initial_repo}/about.json", about_json(love_color: "EAEAEA", about_url: "https://newsite.com/about"))
 
@@ -125,6 +128,7 @@ describe RemoteTheme do
       scheme = ColorScheme.find_by(theme_id: @theme.id)
       expect(scheme.name).to eq("Amazing")
       expect(scheme.colors.find_by(name: 'love').hex).to eq('eaeaea')
+      expect(@theme.color_scheme_id).to eq(nil) # Should only be set on first import
 
       mapped = Hash[*@theme.theme_fields.map { |f| ["#{f.target_id}-#{f.name}", f.value] }.flatten]