Tumblr announced today that it has rolled out a nifty upgrade to its customize panel, which is a feature allowing users to design and customize the layouts for their microblogs.

The upgrade includes a real-time theme preview, which helps users to test new themes without having to refresh multiple times. The panel also includes a new color picker and fonts and users can now browse themes with filters and search.

Those who like to write their own code will be happy to know that the source code editor also got a major revamp.

If you have not changed your Tumblr theme for ages, it’s perhaps time to play with the new features.

Thumbnail image via Josh James / Flickr