[neandrake]

GitBucket's UI used to be a full rip of GitHub until they received a notice to change it [0]. They then switched over to using a UI built with AdminLTE [1]. I'm not sure if the current UI is still based on it though.

[0] http://gitbucket.github.io/gitbucket-news/gitbucket/2016/03/...

[1] http://gitbucket.github.io/gitbucket-news/gitbucket/2016/07/...