diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..5b0b271
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,11 @@
+# Default auto-normalization for text files
+* text=auto
+
+# 1. Code and Pure Text Files (Text-based merge allowed)
+*.txt text
+*.md text
+*.cpp text diff=cpp
+*.gitignore text
+
+# 2. Image / Binary Assets (Forced to Git LFS)
+*.png filter=lfs diff=lfs merge=lfs -text
diff --git a/color.png b/color.png
index 33eb476..c09a771 100644
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diff --git a/green.png b/green.png
index 33eb476..c09a771 100644
Binary files a/green.png and b/green.png differ
diff --git a/red.png b/red.png
index 38406ea..2263e4b 100644
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