DiddleBug sketch

DiddleBug sketch is a graphics format associated with the DiddleBug sketch application for Palm handheld computers. Images are bi-level, 160×160, compressed.

Identification
The ASCII string " " appears at offset 64.

Software

 * Netpbm: ddbugtopbm
 * DiddleBug
 * http://www.palmopensource.com/software/ → diddlebug-2.15.zip, diddlebug-source-2.15.tar.gz