Photo 4.0 was developed with a new compiler and converted to a different GUI system.  Among numerous other improvements, the 3D Gallery feature has been greatly enhanced.  Some further details below:

• Re-engineered Code =>  As with Kaleider and Liquib, the Phota program code has now been converted to utilize the excellent Ultimate++ (U++) application development framework.  U++ is a versatile set of open-source libraries and tools (BSD license), created by an international team of brilliant developers.  Further information and download links are available at http://www.ultimatepp.org/.  A different compiler has also been used to build Phota, which should provide somewhat improved performance.

• Gallery Improvements =>  The album images shown in 3D Galleries
  
  can now be exhibited within realistic Picture frames.  The borders along Gallery walls and doors can have the appearance of actual wood.  The Gallery Options screen has been redesigned to allow selection of Gallery Doors, Frames and Borders as specific images, random images or a chosen colors.
  

• Miscellaneous =>  Numerous minor improvements have been made to the operation and appearance of Phota.