Dollar General has Solarlights in some of their stores. This is a pretty recent development, and not all Dollar General stores have them.
The lights vary in color, and some are more subtle than others.
Some people find the lights to be calming, while others find them to be too bright. Dollar General has not released a statement about the lights, and it is not clear whether or not they plan to keep them in all of their stores.
Based on what we know, it seems likely that Dollar General will continue to have Solarlights in some of their stores. However, it is unclear whether or not they will be all the same color or different colors.
