As of 2014, some Tumblr grid themes that are available include Postcards, Railway, Kyoto, Electrum, Candis and Expo. All of these themes feature a clean and unique design that highlights any content that's presented in an eye-catching way. As Tumblr continues to develop to become a unique content management system, it has tended to create minimalist and clean designs with a focus on either content or photo grids.
The Postcards Tumblr theme, for example, features classical retro-style images and colors, and it is designed with built-in social media access for easy sharing and navigation. The Kyoto, on the other hand features a simple grid design that displays content in a bright and unique manner. This theme also allows the blog owner to highlight particular posts for a different look. Other grid themes, such as Electrum and Expo, are designed in a simple manner and can be used to showcase various works of art or photography with minimal text pollution.
Tumblr's main function serves as a platform for microblogging and social networking. As of 2014, the website is under the ownership of Yahoo! Inc. The website was founded in February 2007 by David Karp and is currently headquartered in New York City.