Energized by infusions of capital from new financial sources, Magruder Color Company is reorganizing its business to respond to the needs of its customers.      To that end, Abdul Saleh, the company’s president, will devote full time to strategic planning as director of international business.      Evan Weissglass will become president of operations, overseeing manufacturing, sales and technical affairs. He will be aided by Frank Giasemedis, who will take on the role of vice president of sales a...