diff --git a/.todo b/.todo
index 2525b0e..ef4b01e 100644
--- a/.todo
+++ b/.todo
@@ -4,10 +4,12 @@ FART To-Do List
   High Priority:
     - Add distribution infrastructure
     - Multi-threading
+    - Attenuate color passing through a transparent object by obj. color
 
   Medium Priority:
     - Shape definitions / reusability
     - Scene file pre-parser to allow includes, macros, and comments
+    - Vim syntax file
 
   Low Priority:
     - Refraction