What metaphors are used in Blues for an Alabama Sky by Pearl Cleage?

Homosexuality and homophobia are also central themes of this play as well as metaphorical markers.Throughout the play, Cleage explores the issue of homosexuality and homophobia (prejudice against homosexuals) in the African-American community. She portrays both the vital gay community in Harlem of the 1920s and 1930s and the virulent homophobia, which results in acts of brutality and violence against gays.