diff --git a/EXPLAINER.md b/EXPLAINER.md
index 4bbacd9..98f7fba 100644
--- a/EXPLAINER.md
+++ b/EXPLAINER.md
@@ -12,11 +12,11 @@ Whenever a site writes to a file, the browser should notify the user.
 ## Browser UI
 No additional browser permission will be required. There will be browser UI that allows the user to open a file and to “save as…” a file. There will be a non modal warning shown by the browser whenever a site writes a file:
 
-> domain.com is writing to example.txt
+![Warning text when writing a file](img/write-warning.png?raw=true)
 
 There will also be a non modal warning shown by the browser whenever a site reads from a file that has changed since the last time the site read the file:
 
-> domain.com is reading from example.txt
+![Warning text when reading a file](img/read-warning.png?raw=true)
 
 The browser should also display all files a domain has access to in the domain's settings. Users will be allowed to revoke access to any of these files.
 
diff --git a/img/read-warning.png b/img/read-warning.png
new file mode 100644
index 0000000..35f5150
Binary files /dev/null and b/img/read-warning.png differ
diff --git a/img/write-warning.png b/img/write-warning.png
new file mode 100644
index 0000000..0a7e24c
Binary files /dev/null and b/img/write-warning.png differ