I didn't really know how to describe this! I recently installed Stellarium 0.12.1 and I notice the sky is always 'night'. In previous versions the sky changed from light to dark with the passing of the day. I have looked through the config files and the user guide but I can't find any way to revert it.
Thanks for replies and assistance.
You seem to have CSS turned off.
Please don't fill out this field.
Press 'A' to switch atmosphere on and off.
In 'Sky and viewing options window' set 'Show atmosphere'.
Thank you very much! I did have atmosphere checked, but I didn't know about the 'A' thingy.