Does Sitefinity automatically persist images?

In the Sitefinity 4.2 Developer's Guide there is a note regarding control properties that says:

NOTE: Sitefinity automatically handles persistence in the background. The private backing field serves only as the default value of the NewsLimit property.

Source:
http://www.sitefinity.com/40/help/developers-guide/how-to-how-to-create-a-newsrotator-control-creating-the-newsrotator-as-a-custom-control-implementing-the-features-of-the-control.html

 My question: Does/Can Sitefinity persist image files? (or just text values?) For example, can an editor upload an image into/for a control and have that image file be automatically persisted as well as the rest of the control data, or will that image uploading need to be handled separately from the rest of the control data?

Hello Dan Sorensen,

If you want to upload an Image then you should probably use the ImageField control. Basically all field controls inherit from a base class and work seamlessly - so the image should be persisted automatically, as long as you set properly the required fields for the ImageField control - like AlbumId and BoundOnServer.