The Green Party of the United States is not primarily concerned with human rights. However, it does have policy proposals that are connected to the issue.
With regard to what the Green Party itself identifies as human rights, it is mainly anti-corporation. It wants to introduce an amendment to the Constitution to explicitly state that corporations are not human beings and have no human rights.
Other aspects of the Greens' platform can be seen as human rights issues. For example, the Greens believe that all people should be able to earn a "living wage" and they believe that women should be treated as equal to men in all ways. These stances can be seen as stances in favor of human rights.
In general, we can say that the Green Party takes a very liberal approach to human rights. It sees things like economic inequality and violence against women as issues of basic human rights.