Originally Posted by MooseMoney
I not quite sure what you mean - please explain.
It's no problem for me to redo the icons if required.
The IHO has a very specific library of symbols that must be used on any chart, whether it's paper or an electronic display. This is so that symbols are common for everyone and also so that there is no confusion about what part of a symbol represents the item's actual location. For example, your buoyage symbols have no dot on them to represent the buoy's charted position. Also, all colours must match the IHO standard.
IHO standard S-52 is where the library of mandatory chart symbols and colours are defined. Right down to the mandatory formulae to use to convert colours from one colour space to another. There is a CD you can get from the IHO that has these symbols in electronic format. I'm assuming that the OpenCPN developers have this CD and is where they get the symbology from.
So while your icons are great, they can't be used on any system that wants to be IHO-compliant.