diff --git a/basic_materials_cement_block.jpg b/basic_materials_cement_block.jpg
index d7aec8c..024005d 100644
Binary files a/basic_materials_cement_block.jpg and b/basic_materials_cement_block.jpg differ
diff --git a/changelog.txt b/changelog.txt
index 6da5180..eca571a 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,5 +1,5 @@
-2018-11-11: Rename and consolidate cement and concrete images; use 
-basic_materials filenames.
+2018-11-11: Rename and consolidate cement and concrete images. Use 
+basic_materials filenames, make cement darker.
 
 2018-10-31: remove lower-res Lua controller images