Bleekk www.bleekk.com has started a Developer-Theme with YAML for ImpressCMS 1.2 (or higher) and sato-san has refined the Theme.
Now the Theme is available for download:
Screenshot:

(click on the screenshot for the page with more details)

Download : http://www.impresscms.de/modules/wf ... mp;lid=227

YAML is "Yet another Multicolumn Layout". It is a framework with which you can easily make new templates.
Please find a link to their website here: www.yaml.de
YAML also has a special site where you can build your own template (the YAML Builder). It then outputs the html and css you need for your website.
Please find a link to the builder website here: builder.yaml.de
The YAML template framework has been integrated into many Content Management Systems
http://www.yaml.de/en/community/cms-templates.html
and now ImpressCMS was added to the list.

Important:

The Yaml theme framework is released under the Creative Commons license, which means that a backlink to the project homepage needs to remain in the layout.
Please see the section on the license conditions page of the YAML Framwork website for more details.

The ImpressCMS Yaml theme is compatible with ImpressCMS 1.2 or higher only

Special items for this theme:

1. A javascript was added to handle notifications like we do here on impresscms.org
2. The theme uses an "active" link in the main menu. For this the menu-block has been changed and css code was added in the theme's styesheets