Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
The ASCII characters which represent the display of the dungeon can now optionally be replaced with a collection of bitmap tiles. (So, for example, 'S' could be replaced with a more graphical representation of a snake.) One example collection is included in the distribution. Tiles can be customized by using an icon editor (such as Pimlico Software's free "dbIcon+") and may be grayscale or color. This feature is currently restricted to OS 3.5 and higher.
A new "Invert" option in Preferences (makes the background black and the default foreground white in the dungeon), and a a text file with a complete color scheme.