/**

 \page page_introduction Introduction

 \tableofcontents

 The Fast Light User Interface Designer, or FLUID, is a graphical editor that
 can produce ready to compile C++ source code and header files.

 This user manual will introduce FLUID, starting with the installation process,
 an overview of the main application window, and how to compile and run a
 simple program. I will explain how to generate a more complex user interface
 with three short tutorial, followed by some advanced subject like creating
 integrated reusable widget classes. The appendices will sum up node types
 and code generation in more detail.

 \section introduction_workflow Workflow

 FLUID has two modes of operation. When started from the shell without command
 line arguments, or when launched from the desktop, FLUID will open in
 interactive mode.

 If FLUID is started from the command line with `-u`, `-c`, or `cs`, it will
 not open any user interface, but instead behave like any shell-only tool that
 can be easily integrated into Makefiles and build systems like CMake.

 \image html fluid_flow_chart_800.png
 \image latex fluid_flow_chart.png "" width=10cm

 FLUID organization

 More details on the command line arguments of FLUID can be found
 in the chapter \ref page_build_integration .

 */