Having been settled roughly two centuries ago, Silona still has a relatively small population, and is often regarded as a "backwoods" world, with portions of its administration such as taxation and export management still handled off-world. Immigration is controlled based on the availability of developed arable land; despite its size, Silona's agricultural industry produces a significant surplus for export.
Silona is pretty much a direct-line colony from Palaven, and the running joke is that their simple tattoo design was just taking the Palaven design and dropping it lower onto the mandibles, as a way to show the planet's lower status and the "working" nature of the colony.
The Silonan language is still very close to that of Palaven Standard.
Happy Christmas From Silona: Harrad reports in from holiday on the homeworld.