Themes allow you to change the look and feel of your Drupal site. You can use themes contributed by others or create your own to share with the community. Contributed themes are not part of any official release and may not have optimized code/functionality for your purposes.
You can also create a sub-theme of an existing theme. A sub-theme inherits a parent theme's resources. Read more about Sub-theme structure and inheritance.
You can also view a full index of themes listing only their titles.
Alek 2.0 is the next theme contribution, in series, by SEOposition.com. Based on amadou theme, it has a three-column(Content | Left Sidebar | Right Sidebar) layout, with three additional columns(block regions) just above the footer, giving you chance to place more of your blocks with less cluttering! The block(bottom) titles are iconed by default, however, you can anytime digg into the style sheet and easily change the icons to suit your needs!
A theme based on the Semantic UI library (authored by Jack Lukic), which empowers designers and developers by creating a language for sharing UI. It is structured around natural language conventions to make development more intuitive.
Impulse is an easily customizable and light weight theme for Drupal 7.x,The main feature is you can edit the basic colors for your website like header,footer,links,sidebar,title and slogan color etc.It has 15 regions so you can customize your website in any form.The highlight of this theme is its navigation it is
A simple responsive subtheme for the base theme Fusion. Uses all of Fusion's default regions and adds a few extra CSS3-enhanced skins for blocks. Detailed README file includes instructions for flyout menus with Superfish, and older IE support with the polyfill css3-mediaqueries.js via Fusion Accelerator.
Gesso is a Sass-based starter theme that outputs accessible HTML5 markup. It uses a mobile-first responsive approach and leverages SMACSS to organize styles as outlined in the Drupal 8 CSS architecture guidelines. This encourages a component-based approach to theming through the creation of discrete, reusable UI elements.
Cogito is an HTML5 Drupal theme based on the foundation framework.
It is designed to make the design workflow easier by providing a standardized CSS framework (Foundation, by ZURB) and building on top of it using child themes. Very often entire themes can be accomplished in less than a page of CSS.
IE6-11 conditional stylesheets now supported:
Simply add a file named "ie6.css" in your child theme's root and it will be used conditionally. Works for ie6, ie7, ie8, ie9, ie10 and ie11 (and maybe by ie11 we won't need different stylesheets anymore)
Beep Edition is designed from the ground up as a mobile-first responsive theme. I created this out of the desire to make as light-weight a theme as I could, using all the tricks I know to make it a solid HTML5/CSS3 responsibly-responsive starting point. It does use SASS/Compass and Zen Grids (minimal use of grids to be honest), and has icon fonts from Font Awesome included. What might be of greatest interest is that I've added an off-canvas menu solution that works 'out of the box' with nice menus, without having to resort to any showing/hiding of extra 'stuff'.
This is admittedly pretty rough, but I think it's a good starting point and lighter in code and 'stuff' than anything else I've tried. It's been a good starting point for many projects now, and is based upon what I learned creating a responsive Zen starter theme in D6 that I've shared with many people over the past few years.
I'm looking forward to collaborating with others on this - I'd like to develop this further with everyone's contributions. I don't want it to be an all-consuming everything theme - but I do want it to continue to serve as a solid starting point (and one that I use for rapid prototyping and 'living wireframing' with clients) for projects that can go pretty much anywhere.
Theme is light-weight and highly configurable, with little help of theme settings API. Look and feel can be customized by using combination of 12 color schemes and 4 styles. Theme has plenty of collapsible regions with specific styling. Check out User Guide in pdf format.