This might get you started:
NamesDefaultToHere(1);
nw = NewWindow("W",
vlb = VListBox(
bb = ButtonBox("Press Me"),
sb = SpacerBox(Size(10, 100))
);
);
Wait(2);
vlb << backgroundColor("Blue");
Wait(2);
bb << backgroundColor("Red");
Wait(2);
bb << setIcon("$SAMPLE_IMAGES/pi.gif");
bb << setIconLocation("Left");
You need to look in 'Help > Scripting Index' to see the different display boxes and the messages they respond to (but if you have written a GUI you will be somewhat familiar with this anyway). For images, search for 'PictureBox()'.