Hi Peter!
I think you missunderstod me.
what i meant was something like this:
var iconA = "\u0089PNG\r\n\x1A\ . . . `\u0082";
var myIcon=new File( Folder.userData.absoluteURI + "/ScriptUI_IconA.png" );if (!myIcon.exist){ myIcon.encoding = "BINARY"; myIcon.open( "w" ); myIcon.write( iconA ); myIcon.close();}