Color

The drones have 4 colored LEDs (red, green, blue, and white).

To visualize the drones' white LEDs with the other LEDs, the drones use a custom material (RGBW Emission) where the alpha channel is used for the white LED.

The white can only be visualized in the Viewport Shading mode Solid with Flat lighting.

This custom material must be used by effectors too (see Add emission material).

The white LEDs are usually only used to make a white brighter with all LEDs switched on at the same value (i.e. grayscale).