Crystalline is my own creation. It contains left and right sidebars and a full page for your own layouts using the Layout function of the core.
Using semi-transparent png files, the background of your site shines through. You can vary the opacity of the background using various png images (supplied). This control is not within the scope of the dashboard interface and must be accomplished thru some very simple text editing of the css file.
All my themes are fully supported. One hour of complimentary technical support is included with this theme should you have any problems.
Supports concrete 5.5