diff --git a/TODO.md b/TODO.md
index c2d489a..b6d35f5 100644
--- a/TODO.md
+++ b/TODO.md
@@ -194,4 +194,5 @@
 - [x] Fixed attachment downloads returning 404 (proper URI template handling)
 - [x] Fixed plain text emails displaying on one line (smart HTML/text version selection)
 - [x] Fixed light mode not applying properly (replaced hardcoded colors with CSS variables)
+- [x] Fixed all hardcoded colors in email viewer for proper theme support