diff --git a/.gitattributes b/.gitattributes
index 8ad74f7..5b0d1a4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,3 @@
 # Normalize EOL for all files that Git considers text files.
 * text=auto eol=lf
+*.png filter=lfs diff=lfs merge=lfs -text
diff --git a/assets/test_debug/fogTest.png b/assets/test_debug/fogTest.png
index d8e10e2..fda53a6 100644
Binary files a/assets/test_debug/fogTest.png and b/assets/test_debug/fogTest.png differ
diff --git a/assets/test_debug/x-grid.png b/assets/test_debug/x-grid.png
index f56c317..e2743d5 100644
Binary files a/assets/test_debug/x-grid.png and b/assets/test_debug/x-grid.png differ
diff --git a/assets/test_debug/y-grid.png b/assets/test_debug/y-grid.png
index 7a2a6de..3443ef7 100644
Binary files a/assets/test_debug/y-grid.png and b/assets/test_debug/y-grid.png differ
diff --git a/expressive_stone.png b/expressive_stone.png
index be9d7ea..0ddf99a 100755
Binary files a/expressive_stone.png and b/expressive_stone.png differ
diff --git a/state_machine/think.png b/state_machine/think.png
index 8a35cd3..81d80a9 100644
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