The default CSS theme (kanban_default) is built-in (it doesn't require an additional CSS stylesheet to be loaded).
Creating Custom Themes
You can create a custom theme by modifying the default theme. Save it to a new .css file and link this file in the HTML page.
The online CSS theme designer will support Kanban themes in the near future.
JavaScript
You can specify a custom CSS theme using theme property:
<!DOCTYPE html> <html> <head> <!-- ... -> <link type="text/css" rel="stylesheet" href="my_kanban_theme.css" /> </head> <body> <div id="dp"></div> <script type="text/javascript"> var dp = new DayPilot.Kanban("dp"); // ... dp.theme = "my_kanban_theme"; dp.init(); </script> </body> </html>