diff --git a/README.md b/README.md
index 3c3e402..2cf14e1 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,12 @@ a library for parsing Bitsy game data.
 
 ## todo
 
+### fix pixels
+
+I made the assumption that a pixel is "0" or "1". nope. 
+it's an unsigned int and can point to whatever colour you like 
+as long as it exists in the palette.
+
 ### functions
 * sprite from
 * sprite to