Respond to css format for syntax highlight with css file

Author: rossta

app/controllers/settings/syntax_highlights_controller.rb

@@ -2,13 +2,20 @@ class Settings::SyntaxHighlightsController < ApplicationController
   def show
     @syntax_highlight = find_syntax_highlight
 
-    render Settings::SyntaxHighlights::ShowView.new(
-      settings: Settings.new(syntax_highlight: @syntax_highlight),
-      available_highlights: Settings::SyntaxHighlight.curated,
-      preview_syntax_highlight: preview_syntax_highlight,
-      session_syntax_highlight: session_syntax_highlight,
-      default_syntax_highlight: default_syntax_highlight
-    )
+    respond_to do |format|
+      format.html {
+        render Settings::SyntaxHighlights::ShowView.new(
+          settings: Settings.new(syntax_highlight: @syntax_highlight),
+          available_highlights: Settings::SyntaxHighlight.curated,
+          preview_syntax_highlight: preview_syntax_highlight,
+          session_syntax_highlight: session_syntax_highlight,
+          default_syntax_highlight: default_syntax_highlight
+        )
+      }
+      format.css {
+        render file: @syntax_highlight.path, layout: false
+      }
+    end
   end
 
   def update