Flag of Ethiopia

Three equal horizontal bands of green (top), yellow, and red
with a yellow pentagram and single yellow rays
emanating from the angles between the points on a light blue disk centered on the three bands;
Ethiopia is the oldest independent country in Africa,
and the three main colors of her flag
were so often adopted by other African  countries upon independence
that they became known as the pan-African colors
CIA. The World Factbook 2002.