trying out less uniform block types

diff --git a/assets b/assets
index 02d4da52e9a926bfed40ebed9b5f64c1da1ddf2f..60f45e233bcf6c051f35f813179fe34f01e61719 160000 (submodule)
--- a/assets
+++ b/assets
@@ -1 +1 @@
-Subproject commit 02d4da52e9a926bfed40ebed9b5f64c1da1ddf2f
+Subproject commit 60f45e233bcf6c051f35f813179fe34f01e61719