diff --git a/im-mr b/im-mr
index 0de5d82..c0e32ce 100755
--- a/im-mr
+++ b/im-mr
@@ -1,3 +1 @@
-IMG1=$1
-IMG2=$2
-magick $IMG1 $IMG2 +append mr.$IMG1.$IMG2
+magick $@ +append mr.png
diff --git a/res/tiles.png b/res/tiles.png
new file mode 100644
index 0000000..cce85b1
Binary files /dev/null and b/res/tiles.png differ