The IL-2 panel lights are a generic green and looks modern compared to actual vintage gauge lighting.
The aircraft of that time period had a variety of back-lighting for thier panels, and the colors differed between nationalities and even manufacturers and sometimes the gauges themselves had thier own unique color for quick ID at night.
You had reds, greens, blues, dim yellows, violets and oranges. Keep in mind that the actual panel lights were dim enough to see the instruments, but not strong enough to be seen at even a short distance.
So in broad daylight, you'd just see the normal instruments and no backlights.