New version 2.3.1 released.

 Changelog

•  Added the decoder for OTF, TTC and TTF font file.
• Added the encoder for AVI videos (uncompressed and compressed with motion JPEG encoder).
• Improved  zoom rectangle functionality: now the rectangle is movable and resizable.
• Improved copy and crop functionality: it's now possible to select the image area  also with an ellipse (Shift + left click + drag) and exclude the selected area (Ctrl + Shift + C).
• Code optimizations and minor bug fixes.