Quickstart:
Just copy and rename an existing template.
-The settings panel will see all directory's in this folder ,and let you choose your new template.
-Clicking Ok in the settings panel will restart the webserver and reload your template.

Notes:
Please configure your editor to use 4-space indents instead of tabs.
Or use scite and my config: http://mvoncken.sohosted.com/deluge/SciTEUser.properties.txt

template language: http://webpy.org/templetor

Exposed methods and variables (c&p from deluge_webserver):
    'sort_head': template_sort_head,
    'crop': template_crop,
    '_': _ , #gettext/translations
    'str': str, #because % in templetor is broken.
    'sorted': sorted,
    'get_config': proxy.get_webui_config,
    'self_url': web.changequery,
    'fspeed': common.fspeed,
    'fsize': common.fsize,
    'render': render, #for easy resuse of templates
    'button_style': (proxy.get_webui_config('button_style')),
    'rev': ('rev.' +
        open(os.path.join(os.path.dirname(__file__),'revno')).read()),
    'version': (
        open(os.path.join(os.path.dirname(__file__),'version')).read())

I will update this file if there is interest in making templates.