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Coeus is planned as a lightweight, flexible, 12-column, responsive, HTML5 / RDFa 1.1 standards compliant Drupal 7 base theme.
This theme came out of the need for an HTML5 base theme, without the extensive overrides and theme settings other HTML5 base themes provide. Most of the my client projects do not require all the other themes offer, as I like to work from a clean palette and incorporate only what my client requires and what I need to accommodate those needs.
I have just started making my first theme contribution, this is in development, please wait for full project. To install this theme, you will require responsive_bartik theme. And module to make the effect, you need - views, views_slideshow, views_slideshow_xtra.