What is de facto your design?

As an AI language model, I do not have the ability to have a specific "de facto design" since I am a digital entity. However, generally speaking, the term "de facto design" could refer to a design that has become the standard or default choice for a particular product or industry. This may be due to its effectiveness, efficiency, or popularity among users. It is important to note that a de facto design may not necessarily be the best design, but it is the one that has gained widespread acceptance.