Oh, now I see it too. It's irritating written. There should be more information about this.
For example: You need to specify your icon in a separate text file with an GFX extension. This should be in your GFX text file written:
spriteTypes = {
spriteType = {
name = "GFX_<YOUR_DECISION_NAME_HERE>"
texturefile = "gfx\\interface\\<YOUR_DDS_FILENAME_HERE>"
}
}
Make sure to change <YOUR_DECISION_NAME_HERE> with your actually decision name and <YOUR_DDS_FILENAME_HERE> with your actually dds filename in gfx\\interface\\ directory.
You can add more icons by simply adding more spriteType{...} within your spriteTypes{...} in your GFX file. For example:
spriteTypes = {
spriteType = {
name = "GFX_my_first_decision"
texturefile = "gfx\\interface\\my_first_decision.dds"
}
spriteType = {
name = "GFX_my_second_decision"
texturefile = "gfx\\interface\\my_second_decision.dds"
}
spriteType = {
name = "GFX_my_third_decision"
texturefile = "gfx\\interface\\my_third_decision.dds"
}
}
#This would be a good help, not those 2 short lines in the WIKI.