The Label component currently requires both a background color and a text color. Only background color should be required. Text color should be calculated based on that. For example, this will give a black label with black text. Nobody wants this. ``` <gl-label background-color="#000" color="dark" /> ``` Current label text function: https://gitlab.com/gitlab-org/gitlab/blob/master/app/helpers/labels_helper.rb#L113