Earlier this month, 26-year-old Mohammed Hashim Mattar was killed by Sudanese paramilitary forces. His favorite shade of blue—appearing in social media campaigns and profile pictures—now symbolizes the martyrs of the pro-democratic revolution. Riots began in December when protesters demanded lower food costs, fuel shortages, and the removal of dictator Omar al-Bashir, who oversaw the War of Darfur in 2004. When the military removed the president in April, the Sudanese peopl