[2.0.1] - 09/10/2021. Make all initializers const [2.0.0] - 08/23/2021. Null safe version [1.0.0] - 03/11/2020. Change to use primaryTextTheme [0.1.8] - 03/10/2020. Documentation update [0.1.7] - 03/10/2020. Sample file [0.1.6] - 03/10/2020. Documentation update [0.1.0] - 03/08/2020. Initial Release