If you're using an image button with no image, you need to use a blank transparent .png for the button image.
Hi Gerry:
I am confused I guess. First I place an LED and then choose the button name of the two color button I set it's action to the Function the LED is to mimic. I then cover it with a transparent button image and assign the action to perform to the transparent button.
What am I missing in your response?
George