Stymaker is a GUI application assisting LaTeX users with creating their own style packages. After filling a simple form one can get a new package file corresponding to the chosen settings. This package may be included in preamble of LaTeX document by:
\usepackage{mystyle}
The new package, based on standard LaTeX packages, allows changing of the document layout, or appearance of standard environments like such as lists. While testing new settings one may instantly view actual changes...