There are a lot of people who feel that the sight of blood is scary mainly because they are afraid of it. Some have even said that blood reminds them of death, sickness and hospitals. Why blood may seem to be something that is hard to appreciate, there are some people like you who may be completely fascinated with them. You would like to get to know details on why there are different blood types in this world. As much as possible, you would like to know more information about blood in general and what better way to appreciate it than by having this Windows 10 theme on your computer or laptop now? This Windows theme can be gory and great at the same time.