diff --git a/cookbook-rn/TODO b/cookbook-rn/TODO
index f1656b9..50ff626 100644
--- a/cookbook-rn/TODO
+++ b/cookbook-rn/TODO
@@ -3,3 +3,7 @@
 - you should be able to swipe across examples.
 - the list of example texts are shitty. we need to make it better. I think a thumbnail would be neat, simplify and cleanify the text too.
 - implement blurimgtitle. probably will use react-native-view-shot for rasterizing the text.
+- write more "pure tests" screens. accessible from the about screen.
+  - add back the image orientations test
+  - test if opacity "works"
+  - try to put one surface in the corner of another to see if z-index and also if there is no rendering weirdness.