These image files, contributed by berkinet, contain several sizes of LED icon images for: Amber, Blue, Green, Red, UltraViolet (uv), White, Yellow and bi- color Red/Green LEDs. The "off" image of the colored images is a very dark version of the named color. For the bi-color LEDs the "off" image is Red and the on/true image is Green.
Place the contents of the Variable LEDs Folder into:
/Library/Application Support/Perceptive Automation/Indigo 4/IndigoWebServer/images/controls/variables
Place the contents of the Device LEDs Folder into:
/Library/Application Support/Perceptive Automation/Indigo 4/IndigoWebServer/images/controls/devices
To use these images in a control page simply select the appropriate image name in the Control Page editor.