Feature: Fixed Lights

The Fixed pattern, F, is an always-on light in the given colour.

Scenario: Default white fixed light

When I request an image with the characteristic F

Then the image is a fixed white light

Scenario Outline: Explicit fixed <name> light

When I request an image with the characteristic <character>

Then the image is a fixed <name> light

Examples:

character	name
F W	white
F R	red
F G	green
F Y	yellow