In “Same Family, Different Colors: Confronting Colorism in America’s Diverse Families,” Lori Tharps, an associate professor of journalism at Temple University and author of “Hair Story: Untangling the Roots of Black Hair in America” and “Kinky Gazpacho: Life, Love & Spain,” Tharps gives voice to a dynamic that as she notes, “…doesn’t even exist. Not officially. It autocorrects on my computer screen. It does not appear in the dictionary. So, how does one begin to unpack a societal ill that doesn’t have a name?”