Hamlet has an article about Stevie Davros’ enhanced skies. In 2011 Firestorm added a feature that allows replacement of Second Life™ clouds. Thank you for the computer code, Cinder Roxley. Back then Vincent Nacon was creating new cloud images for this feature.

So, this feature is not new nor limited to Firestorm. JuicyBomb wrote a tutorial NEW CLOUDS FOR SECOND LIFE, May 2013, for those using the Linden Viewer. The instructions are good for any viewer.
Not much has changed since then. I just checked in the Linden Viewer 5.1.0 and there is still no provision for selecting a different cloud texture. So, it is still a manual change.


