Glowing Umbrella for dark rainy days

I just love it when technology and fantasy overlap! Perfect illustration of these two features is the Glowing umbrella. Perfect for walking thru the rains after the sun sets, this umbrella also does its usual job of keeping you dry. Apt for the why-didn’t-I-think-of-it slot, this lovely umbrella is still in its conceptual stage. But I don’t see any reason for it to not reach the productive stage.