The dashboardthemes package v1.1.1 is now available on CRAN, after several years of being available on GitHub.
More details are given in the below links:
Blog post: https://nik01010.wordpress.com/2020/07/06/dashboardthemes-v1-1-1-cran-release/
Github repo and detailed instructions: https://github.com/nik01010/dashboardthemes
There are new features planned, and your feedback is welcome.