diff --git a/.gitignore b/.gitignore
index 566478c8..3c599ecc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -115,3 +115,4 @@ tmp_standalone_files
 
 # Local config
 config.local.js
+.DS_Store
diff --git a/res/ui/building_tutorials/underground_belt-tier2.png b/res/ui/building_tutorials/underground_belt-tier2.png
index 476ad4da..69981b26 100644
Binary files a/res/ui/building_tutorials/underground_belt-tier2.png and b/res/ui/building_tutorials/underground_belt-tier2.png differ