Collecting Smiles announces a contest as well, offering up a Wii U.
http://www.nintendoworldreport.com/news/33683
Colors! 3D, a drawing application available on the 3DS eShop, will receiving a long-in-the-works update on April 5.
As noted on developer Collecting Smiles' website, features of the update include:
• Follow your favorite artists in the gallery to make sure you don’t miss any of their paintings.
• Customize your Nintendo 3DS button setup to streamline your painting flow.
• Use the new search bar to easily find paintings of your favorite topics.
• Filter paintings in the gallery based on if they used a reference photo not—only want to see original works? No problem.
• See what tools you and others used to create a painting—and find out who spent over 30 hours on a single work!
• Get news directly in Colors! 3D about everything from gallery improvements to painting contests.
• Make your own gallery page more individual by customizing it with a message and a profile picture.
• Tag your paintings with the new #tags system for other users to easily find them.
• And tons (and tons) of other additions and bug-fixes.
You can read a full listing of each addition here.
In addition, the studio has announced a contest to coincide with this update. Users are to create a drawing using the theme "Paint the World in colors," upload it to the online gallery, and use the tag #painttheworld in the description. The contest runs until April 25, and first place walks away with a Wii U.