Remove or move old .ico and .pgn files and add new icons (.ico files and .png files) in bitmaps_png/icons and bitmaps_xpm/icons .png files and .ico are used to build desktop shortcuts Handle variable size bitmaps in kicad.
Fix minor other issues. Remove unused files.
Eeschema: optimize import of footprints names ( .stf files) that was time consumming with large designs.