diff --git a/config.toml b/config.toml
index ed6eee0..772183b 100644
--- a/config.toml
+++ b/config.toml
@@ -15,6 +15,7 @@ disablePathToLower = true
     subtitle = 'A Post-Self Story'
     subtitleLink = 'https://post-self.ink'
     customCSS = ['/css/motes-played.css']
+    ogimg = '/square.png'
 
 [markup.goldmark.renderer]
     unsafe = true
diff --git a/static/square.png b/static/square.png
new file mode 100644
index 0000000..9c93a85
Binary files /dev/null and b/static/square.png differ
diff --git a/themes/maddybook b/themes/maddybook
index 40a5915..7229e96 160000
--- a/themes/maddybook
+++ b/themes/maddybook
@@ -1 +1 @@
-Subproject commit 40a591574fdf19ad17ef4a0135ff9cf61a5afbf7
+Subproject commit 7229e96e5241f9aff5f2611bc5e18b9007ec67a3