FLUID: Documentation

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  \tableofcontents
 
- - Provide an introduction that explains the purpose of the user manual and any prerequisites or system requirements.
+ ## Light User Interface Design ##
+
+ FLUID is the Fast Light User Interface Designer that accompanies the fltk
+ user interface library. FLUID relies on panels and dialogs that are generated
+ within FLUID. Consequently, developers are required to consistently assess the
+ user-friendliness and code integrity of the application.
+
+ This document presumes you are familiar with FLUID, have read the most
+ important parts the FLUID User Manual, and have created some user interfaces
+ in FLUID already.
+
+ ## History ##
+
+ FLUID is an application that grew over time with fltk. In its original design,
+ it was meant to allow users to drag and resize a limited number of widgets
+ for small dialog boxes. As the feature set grew over time, new concept and
+ designs were introduced by new authors. In its current state, FLUID's source
+ code is largely undocumented and difficult to read and understand.
+
+ This should not stop you from diving into the code though. The concepts and
+ ideas behind FLUID are great. The software itself is very usable and stable.
+ And while digging through the code, any addition to the documentation is
+ highly appreciated.
+
+ ## Future ##
+
+ As we approach the imminent release of FLTK 1.4.0, FLUID will no longer undergo 
+ significant feature enhancements. Instead, the focus will shift towards
+ documentation improvements, addressing bugs, and enhancing usability for
+ recent FLTK additions such as Fl_Grid and Fl_Flex. Following the release of
+ 1.4.0, FLUID will undergo a comprehensive restructuring and modernization,
+ streamlining maintenance and simplifying the process of integrating
+ support for new widgets.
+
+ ## Quick Glossary ##
+
+ __Project__ : a project is a single design, stored in a project file ending in
+    `.fl`. A project contains a bunch of settings and a tree of Types. One
+    project can contain multiple UI designs.
+
+ __Code File__, __Header File__ : by default, FLUID generates C++ source code
+    that is stored in two files with the same basename as the project. The
+    C++ declarations go into the header file ending in `.h`, and the
+    implementation is stored in the `.cxx` source code file.
+
+ __Strings File__ : FLUID supports internationalization (in short i18n) of all
+    know text elements in a project. The Strings file can be generated as a
+    base for adding new languages. The file extension depend on the chosen
+    i18ns library.
+
+ __Types__ : a type is a node in a tree that manages a widget or a functional
+    node like Class, Function, CodeBlock, etc.
+
+ __Panels__ : in its interactive incarnation, FLUID provides a number of panels
+    (dialog boxes) for editing all aspects of Types.
+
+ ## Basic Structure ##
+
+ ...
 
  */