Abacus is mentioning FS Repaint again. “….. It is used by thousands of hobbyists to easily make impressive visual changes to their favorite aircraft. Its built-in editor lets you repaint planes right before your eyes – you see the changes immediately as they’ll appear in Flight Simulator. Redesign takes only a few steps: select an aircraft, create a new variation, repaint the aircraft, save it and then run Flight Simulator. Make a “rush repaint” in just minutes, or spend more time to add exacting details….”. More info on their website here.