in the three kingoms why was the rebel group called the yellow scarves

In the historical Chinese novel "Romance of the Three Kingdoms," the rebel group is known as the Yellow Scarves Rebellion. The name "Yellow Scarves" refers to the yellow-colored scarves that the rebels wore around their heads or arms as a symbol of unity and identification. These rebels were primarily peasants who were frustrated by oppressive taxation, corruption, and famine during the declining years of the Eastern Han Dynasty in the 2nd century AD. The rebellion was organized and led by Zhang Jiao, who claimed to be a Taoist sorcerer capable of performing supernatural miracles, which further appealed to the masses. The Yellow Scarves Rebellion represented a significant challenge to the imperial government, leading to widespread chaos and social unrest throughout the region.