"Create a retro-style nougat candied fruit bars recipe. Make it sweet, chewy, and nostalgic, with colorful candied fruit pieces and a nougat base. Keep it simple and approachable for an intermediate home cook. Use imperial units only. Avoid allulose; if a sugar substitute is needed, use a small amount of another option or just use regular sugar. Include clear ingredients, concise steps, and any helpful tips for setting and slicing bars."