Google has updated the Gboard beta app to 6.1 with some new features.
One of the features is built-in translations. You can start typing in your language and the keyboard will automatically translate and enter the translated text in the text field as you type.
Apart from that there is also a new theme selector. The themes are laid out in rows separated by categories such as Custom, recently used, colors, and landscapes. In landscapes you get a bunch of stock images that can be used as background images for your keyboard.
Other additions include the ability to predict emoji and support for Bashkir language.