Thomas Kinkade has made millions as a self-styled “Painter of Light.” But some of his gallery owners are suing him, and they paint a pretty dark picture. “In litigation and interviews with the Los Angeles Times, some former gallery owners depict Kinkade, 48, as a ruthless businessman who drove them to financial ruin at the same time he was fattening his business associates’ bank accounts and feathering his nest with tens of millions of dollars.”