This package provides a flexible dark or light colour theme designed for maximum readability in environments where most themes fall flat. Main features: Dark color theme for presenting in low-light conditions. Optional light color theme for presenting in bright ambient light. Redefines color names “red”, “green”, “blue”, “yellow” to values that are visible when displayed by certain projectors, particularly those with a very bright green channel and dim red and blue channels. This behaviour can be optionally disabled, with the provided colours also available as “OwlRed”, “OwlGreen”, etc.