Using-Images-and-Fonts-on-System-without-File-System.md

 _How to build source for incore images and fonts, and load them for your MiniGUI apps._
 
+Table of Contents
+
+- [Overview](#overview)
+- [Tools for Generating Incore Data](#tools-for-generating-incore-data)
+- [APIs for Managing Incore Data](#apis-for-managing-incore-data)
+- [Restrictions](#restrictions)
+
 ## Overview
 
-## Key Points
+We often want to embed the raw data of images and/or fonts into the final executable
+of a MiniGUI app:
+
+- The operating system does not provide support for file system.
+- You want to protect your digital intellectual properties such as icons.
+
+For this purpose, MiniGUI provides a set of APIs and tools to embed the arbitrary
+data into the final executable.
+
+Note that, in MiniGUI term, we often call the embedded data as `incore data`,
+`incore resource`, or `inner resource`.
+
+For a complete sample, please refer to:
+
+<https://github.com/VincentWei/mg-samples/tree/master/incore-data>
+
+## Tools for Generating Incore Data
+
+## APIs for Managing Incore Data
+
+## Restrictions
 
-TBC...
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