install.rb in cssbundling-rails-1.1.0

- old
+ new

@@ -5,10 +5,10 @@
 
 say "Add build:css script"
 build_script = "sass ./app/assets/stylesheets/application.bulma.scss ./app/assets/builds/application.css --no-source-map --load-path=node_modules"
 
 if (`npx -v`.to_f < 7.1 rescue "Missing")
-  say %(Add "scripts": { "build:css": "#{build_script}" } to your package.json), :green
+  say %(Add "scripts": { "build:css": "#{build_script}" } to your package.json), :red
 else
   run %(npm set-script build:css "#{build_script}")
   run %(yarn build:css)
 end