stylesheet_paths is the only public method

app/models/application_platform.rb

@@ -66,29 +66,30 @@ class ApplicationPlatform < PlatformAgent
     end
   end
 
-  def stylesheet_asset_name
-    case
-    when android_app? then "android"
-    when ios_app?     then "ios"
-    else                   "desktop"
-    end
-  end
-
   def stylesheet_paths
     scoped_stylesheet_paths("web") +
     (mobile_app? ? scoped_stylesheet_paths("mobile_app") : []) +
     scoped_stylesheet_paths(stylesheet_asset_name)
   end
 
-  def scoped_stylesheet_paths(scope = css_asset_name)
-    # Allow new stylesheets to be added in dev/test without restarting server
+  private
+    def stylesheet_asset_name
+      case
+      when android_app? then "android"
+      when ios_app?     then "ios"
+      else                   "desktop"
+      end
+    end
+
+    def scoped_stylesheet_paths(scope = css_asset_name)
+      # Allow new stylesheets to be added in dev/test without restarting server
       SCOPED_STYLESHEET_PATHS.clear if Rails.env.development?
 
-    SCOPED_STYLESHEET_PATHS[scope] ||=
-      Rails.root.join("app/assets/stylesheets").then do |stylesheet_root|
-        stylesheet_root.glob("#{scope}/**/*.css").collect do |path|
-          path.to_s.remove(stylesheet_root.to_s + "/", ".css")
+      SCOPED_STYLESHEET_PATHS[scope] ||=
+        Rails.root.join("app/assets/stylesheets").then do |stylesheet_root|
+          stylesheet_root.glob("#{scope}/**/*.css").collect do |path|
+            path.to_s.remove(stylesheet_root.to_s + "/", ".css")
+          end
         end
-      end
-  end
+    end
 end