diff --git a/color qr.md b/color qr.md
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--- a/color qr.md	
+++ b/color qr.md	
@@ -1,5 +1,7 @@
-- [[qr codes]] are black and white only, but there are some colorful alternatives:
+- [[qr codes]] tend to be black and white only, but there are some colorful alternatives:
 	- [[jab]]
 	- [[hccb]]
+- note that [[qr codes]] don't *need* to be black and white; they can be made colorful, but don't actually use color to encode information even in that case.
+	
 
 https://twitter.com/flancian/status/1405974430048731140
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diff --git a/qr codes.md b/qr codes.md
new file mode 100644
index 000000000..e69de29bb