Portable Electronic Device Controlling Diffuse Light Source to Emit Light Approximating Color of Object of User Interest

A trigger event causes a portable electronic device to capture an image of an object in which a user has expressed interest. The trigger event can be an express command or an implied, or inferred, indication of the user's interest in the object. With an image of the object captured, the portable electronic device determines a predominant color, and controls one or more diffuse light sources associated with the portable electronic device to emit light that approximates the determined color. The one or more diffused light sources controlled in this manner can include multi-color light emitting elements located at a housing of the portable electronic device, multi-color light emitting elements located at a case accessory of the portable electronic device (e.g., a case cover, holster, etc.), or a combination thereof.