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diff --git a/doc/InputImage.md b/doc/InputImage.md
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@@ -39,3 +39,7 @@ that.
 
 This is an optional link to a [UiTheme](UiTheme.md) you want to use for this
 InputImage. If blank, the default UiTheme is used.
+
+## See Also
+
+ * [Rich Text Input Decorator](RichTextInputDecorator.md)
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diff --git a/doc/RichTextInputDecorator.md b/doc/RichTextInputDecorator.md
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@@ -0,0 +1,86 @@
+# Rich Text Input Image Decorator
+
+This helper class allows you to embed images of input controls into rich text
+like this:
+
+![Rich Text Decorator Example](../Resources/RichTextInputImageExample.gif)
+
+The UMG [Rich Text widget](https://docs.unrealengine.com/en-US/Engine/UMG/UserGuide/UMGRichTextBlock/index.html)
+has two main configuration points.The first is the Text Style Set which controls the font
+(mandatory: if you don't set up one of these with a Default style your text will be garbage).
+
+The second, which is what we're interested in here, is the decorator system.
+This allows you to use custom markup to insert other widgets in the rich text run.
+
+## Setup
+
+### Create theme
+
+If you haven't done this already, you need to create a [UiTheme](UiTheme.md).
+Follow the instructions in that linked page first; the Rich Text blocks always
+use the default theme (unfortunately I haven't found a way of exposing
+extra properties on decorators in the editor to allow a custom theme).
+
+### Add decorator to Rich Text block
+
+All you need to do next is add "RichTextInputImageDecorator" to the list of decorators
+on your Rich Text block instance:
+
+![Decorator Configuration](../Resources/richtextdecoratorconfig.png)
+
+Then you can use the `<input ... />` tag whenever you want to insert an image
+related to input controls. There are various options:
+
+## Adding input images to rich text
+
+### Input Actions
+
+`<input action="TheActionName"/>`
+
+This displays the image for a bound action input, as configured in project settings.
+
+### Input Axes
+
+`<input axis="TheAxisName"/>`
+
+Similarly this displays the image for a bound axis input, as configured in project settings.
+
+### Manual Key
+
+If you don't want to reference the input bindings and just want to display a
+single key (and in this case 'key' can mean an actual keyboard key, or a gamepad
+button, or any axis).
+
+`<input key="F1"/>`
+
+The value of the "key" attribute can be any string present in the 
+[EKeys enum](https://docs.unrealengine.com/en-US/API/Runtime/InputCore/EKeys/index.html).
+That's not just keyboard keys, it's gamepad and mouse buttons & axes too.
+
+## Optional Parameters
+
+### Player
+
+For the `action` and `axis` types, the default is to use the binding for the
+first player. If you have multiple local players you can add the attribute `player="n"` where
+n is 0 for the first player, 1 for the second etc.
+
+E.g. `<input action="Fire" player="1"/>` would display an image for the Fire input
+action bound for the second player.
+
+### Width / Height
+
+By default the size of the images is based on the line height of the font and the
+aspect ratio of the image. However, if you want to override this, you 
+can add `width="w"` and/or `height="h"` attributes, where w/h are size 
+units.
+
+E.g. `<input action="Fire" height="75"/>` will force the height to 75 units and
+derive the width from that based on the aspect ratio.
+
+It's generally best just to set the height and not the width as well, since 
+setting both can cause the image to be distorted if it's not the same aspect ratio.
+
+## See Also
+
+ * [Input Image](InputImage.md)
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diff --git a/doc/Widgets.md b/doc/Widgets.md
index e557349..537a422 100644
--- a/doc/Widgets.md
+++ b/doc/Widgets.md
@@ -17,6 +17,13 @@ Several custom widgets are supplied to assist with some common challenges:
   display the image for an associated bound control, based on the currently
   active input method. Dynamically switches as input method changes.
 
+* [Rich Text Input Decorator](RichTextInputDecorator.md)
+
+  A decorator for Rich Text controls that allows you to use markup like
+  `<input action="SomeGameAction"/>` in your text to inline an image of 
+  the input control which is bound to that input action right now. 
+  Again this dynamically switches as input method changes.
+
 * [Menu System](Menus.md)
 
   A couple of classes to make it  easy to create multi-level on-screen menus