First, look at template supplied with installation (Download). You can find here some PHP code, let's see:

<?php render("menu") ?> 

renders data from pages/menu.html subdirectory. The same for:

<?php render("sidebar") ?>

And there are main page body:

<?php echo($pageBody); ?>
<a href="edit.php?page=<?=$page?>">edit</a>

Above code fragment renders main body of a page and places edit link on bottom.

How to change default theme? It's simple:

  1. Copy your theme files on your server
  2. Modify config.TEMPLATE constant to your html template
  3. Insert links similar to above in apropriate places in a file
  4. And THAT'S ALL!

Note: remember about Security.

“Perfection is finally attained not when there is no longer anything to add but when there is no longer anything to take away.”
-- Antoine de Saint-Exupery