Update sharepoint-site-theming-json-schema.md

Updated JSON definition example w/ missing Fabric slots; added note about inclusion of accent and error slots missing from theme generator output.

Author: seansquires

docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md

@@ -1,7 +1,7 @@
----
+---
 title: SharePoint site theming - JSON schema
 description: The new SharePoint site theming features use a JSON schema to store color settings and other information about each theme.
-ms.date: 04/19/2018
+ms.date: 04/20/2018
 ---
 
 # SharePoint site theming: JSON schema
@@ -41,7 +41,12 @@ The new [SharePoint site theming](sharepoint-site-theming-overview.md) features
     * white
     * primaryBackground
     * primaryText
+    * bodyBackground
+    * bodyText
+    * disabledBackground
+    * disabledText
     * error
+    * accent
 
 The colors in the **theme** element are specified as 6-digit or 3-digit hexadecimal RGB string values.
 
@@ -78,7 +83,12 @@ The following is an example of a JSON object that defines a theme.
         white: "#262a35", 
         primaryBackground: "#262a35", 
         primaryText: "#ffffff", 
-        error: "#ff5f5f" 
+        bodyBackground: "#ffffff";
+        bodyText: "#333333";
+        disabledBackground: "#f4f4f4";
+        disabledText: "#c8c8c8";
+        error: "#ff5f5f";
+        accent: "#ffb900";
     } 
 } 
 ```
@@ -89,6 +99,9 @@ The SharePoint Framework includes eight built-in themes: six on light background
 
 Another option is to use the [Theme Generator tool](https://developer.microsoft.com/en-us/fabric#/styles/themegenerator) to build a custom theme. It provides an interactive UI for selecting theme colors, and automatically generates the JSON, SASS, and PowerShell definitions for your custom theme.
 
+> [!NOTE]
+> The theme generator definitions do not currently include the "error" or "accent" color slots. These can be manually added to your generated definition before uploading to the tenant.
+
 ![Theme Generator tool](../../images/theme-generator-tool.png)
 
 The following is a summary of the built-in themes, including JSON definitions for the theme colors that you can use as a starting point for customization.