From some viewpoints, a shadow has a bright side. An example is my response to a CDHK challenge to use the word [shadow] in a haiku.
Image cropped from © Ryanfaas | Dreamstime.com
Sunlight breaks thru clouds
and sends hawk’s shadow downward.
Prey darts for cover.
(BTW, the [Menu] button atop the vertical black bar reveals the widgets.)