diff --git a/SD/20230101_outline/index.qmd b/SD/20230101_outline/index.qmd
index c9af968..27596b7 100644
--- a/SD/20230101_outline/index.qmd
+++ b/SD/20230101_outline/index.qmd
@@ -3,6 +3,7 @@ subtitle: "Outline & Key figures"
 author: "AUTHOR"
 institute: "RCEES, CAS"
 lang: en
+background-image: _extensions/drwater/dwsd/inst/rceeslogo.svg
 format: 
   dwsd-revealjs: default
 # filters:
@@ -24,7 +25,7 @@ format:
 
 
 
-## Thanks for your attention! {.center}
+# Thanks for your attention!
 
 ```{r}
 #| results: 'asis'
diff --git a/_extensions/drwater b/_extensions/drwater
index f97b954..3d1756c 160000
--- a/_extensions/drwater
+++ b/_extensions/drwater
@@ -1 +1 @@
-Subproject commit f97b9548745465d0288149cc09959ad0d97af795
+Subproject commit 3d1756c5bb54140d935fd2a57091e5352561cf47