Retractable awnings adjust to altering skies, extending for shade or shelter from light rain

https://www.tumblr.com/unseenmistchampion/820335088429645824/sun-safe-schoolyards-customized-shade-structures

Retractable awnings adapt to altering skies, extending for shade or shelter from light rain, then hiding to expose sun or starry nights, all with smooth, low-maintenance systems.