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

Added all of the missing palette keys which are not generated by the generator.

Author: influential-eliot

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

@@ -95,7 +95,17 @@ The SharePoint Framework includes eight built-in themes: six on light background
 Another option is to use the [Theme Generator tool](https://aka.ms/themedesigner) 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.
+> The theme generator definitions do not currently include the following color slots / key/value pairs:
+> - "primaryBackground"
+> - "primaryText"
+> - "bodyBackground"
+> - "bodyText"
+> - "disabledBackground"
+> - "disabledText"
+> - "error"
+> - "accent"
+> 
+> These can be manually added to your generated definition before uploading to the tenant.
 
 ![Theme Generator tool](../../images/theme-generator-tool.png)