Add fringe-helper to core-ui

core/core-ui.el

@@ -142,6 +142,9 @@ mode is detected.")
 ;; Plugins
 ;;
 
+(def-package! fringe-helper
+  :commands fringe-helper-define)
+
 (def-package! hideshow ; built-in
   :commands (hs-minor-mode hs-toggle-hiding hs-already-hidden-p)
   :config

core/packages.el

@@ -13,6 +13,7 @@
 (package! osx-clipboard        :ignore (not IS-MAC))
 
 ;; core-ui.el
+(package! fringe-helper)
 (package! highlight-indentation)
 (package! highlight-numbers)
 (package! nlinum)