The father has normal vision (XCY) and the mother has normal vision but she is a carrier for colorblindness (XCXc). Look at photo

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

to this answer it would be edge enhancement