This release contains new features for IconWidget, ability to set label_background and ability to set a transparency index to be used on the Icon's palette.
To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).
To use in CPython, `pip3 install adafruit-circuitpython-displayio-layout`.
Read the [docs](http://circuitpython.readthedocs.io/projects/displayio-layout/en/latest/) for info on how to use it.