diff --git a/README.md b/README.md
index c862550..9de210d 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,11 @@
 
 ## About
 
-Create user option to allow a user to hide #NSFW-hashtagged notices behind a blocker image until clicked.
+WARNING: THIS IS ALPHA CODE, IT IS PRERELEASE AND SHOULD ONLY BE INSTALLED TO
+HELP TEST OR YOU ARE WILLING TO TAKE RISKS.
+
+Create user option to allow a user to hide #NSFW-hashtagged notices behind a
+blocker image until clicked.
 
 Works for both vanilla GNUSocial and with the Qvitter plugin.
 
@@ -15,6 +19,16 @@ if you want to customize the blocker image, add a line to your config.php:
 
   $config['site']['sensitivecontent']['blockerimage'] = "/path/to/image.jpg";
 
+## Usage
+
+Individual users must go to their Settings page. A new sidebar menu item "Sensitive Content"
+will be available. User checks or unchecks the checkbox on this page, and presses save.
+
+
+If you have GNU Social open in other browser tabs, refresh them. If you are using Qvitter, also
+refresh, but because Qvitter caches notices on the client side, only new sensitive images will
+be hidden, it will not apply to notices retroactively unless you clear your browser cache.
+
 ## License
 
 GNU Affero License
@@ -23,4 +37,5 @@ GNU Affero License
 
 Thanks in particular to Hannes and Qvitter because looking at his code helped me a lot.
 
-A tiny bit of content was taken from Qvitter to enhance Qvitter with this funcitonality.
+A tiny bit of content was taken from Qvitter to enhance Qvitter with this functionality.
+
diff --git a/SensitiveContentPlugin.php b/SensitiveContentPlugin.php
index f4c38a9..8eb7c4a 100644
--- a/SensitiveContentPlugin.php
+++ b/SensitiveContentPlugin.php
@@ -81,8 +81,7 @@ width: 100%;
 height: 100%;
 position: absolute;
 z-index: 100;
-/*background-color: #d4baba;*/
-background-color: black;
+background-color: #d4baba;
 background-image: url($blocker);
 background-repeat: no-repeat;
 background-position: center center;