The following open source libraries are used and included within these sample/demonstration projects:

Bootstrap (Open Source – MIT License)
Copyright (c) 2011-2021 Twitter, Inc. / Copyright (c) 2011-2021 The Bootstrap Authors
https://github.com/twbs/bootstrap/blob/v4-dev/LICENSE

Bootswatch (Open Source – MIT License)
Copyright (c) 2013 Thomas Park
https://github.com/thomaspark/bootswatch/blob/master/LICENSE

The open source libraries included in these sample/demonstration projects are done so pursuant to each individual open source library license and subject to the disclaimers and limitations on liability set forth in each open source library license.