Modula Mojito is a great theme for Redmine made by Modula.
Modula has not been able to maintain the theme through to the latest versions of Redmine, so this repository takes the last published version from Modula and adds a few improvements show in the page's comments.
Contributions and improvements via GitHub are most welcome, to be able to maintain compatiblity with the latest versions of Redmine (and now, for ChiliProject also).
You should also check Modula Martini, another discontinued theme from Modula being maintained by Bevan Rudge.