Icon Editor:

• Creating mouse pointers doesn't work. (At least not with GOC-Output.)
• Creating 256 colour-icons didn't work with the 2.0-SDK under Geos 2.0. But using the icon-editor from the Omnigo-SDK (or later) under NewDeal Office 2.5 (or better) created nearly correct source. You still have to edit some lines in the header, though:
  Is: BMF_4BIT or BMF_MONO
  Should be: BMF_8BIT.
  Is: color4 or color8
  Should be: colorRGB.
  Hint: It obvioulsy helps when you're creating those icons with a Geos 3.x/4.x running in true-colour-mode and when working with GIF/JPEG/BMP-pictures imported by Breadbox' GraphicViewer or Rainer Bettsteller's Gonzo.
• Correct icons will only be created when the preview isn't scrambled. (Save before activating the preview! The preview-functions sometimes crashes Geos!)