On this page of the Trek to Yomi guide, you will learn if it is possible to turn off the black and white game style in order to play in a full color palette without a monochrome filter.
One of the hallmarks of Trek to Yomi is the black and white graphics. This is an interesting design, although in certain situations it can make it difficult to explore the level or see opponents, especially when the camera is far from where the action is taking place.
Trek to Yomi unfortunately does not have an option to turn off the monochrome filter. This style is an integral part of the game and is a reference, in particular, to Akira Kurosawa’s samurai films.
Some consolation is that you can disable the two graphic filters that are enabled by default. These are the bloom filter and the noise filter. Disabling the latter may improve the visibility of the events presented on the screen, although the gameplay may become less atmospheric as a result.
Also, if you’re having trouble navigating darker areas in the game, you can adjust the gamma. However, this should not be a problem because there are not many dark places.