Personally, I think the character Cao should be calculated based on 10 strokes when naming.
Cao, a variant of "曺", with 11 modern strokes and 10 strokes in the Kangxi dictionary, means that the five elements belong to gold.
Most people think Cao painted 11, and there are some who think Cao (曺) painted 10, but they are very few. In fact, in Taiwan, the word "曺" is very commonly used, but most people don't know it. In the old version of "The Romance of the Three Kingdoms", the illustration shows Cao Cao's flag with the character "曺" on it. Although the truth is often in the hands of a few people, it cannot be said that it is wrong to think that Cao Wei painted 11 paintings. This is really a dilemma. Both 10 and 11 paintings are reasonable, but we can only choose one. The most important thing is that if there is a difference in the word "name", we can still avoid it, but Cao is a surname and cannot be avoided. In nomenclature, there are still some special regulations, such as "three points of water" is stipulated as four paintings, "handle" is stipulated as four paintings, etc., which cannot be explained by modern perspectives. For another example, the modern Chinese standard for the word "成" is 6 strokes, but in the Kangxi dictionary it is 7 strokes (the horizontal fold hook becomes "horizontal + vertical hook"). The strokes of the prescribed characters in nomenclature should be based on the Kangxi Dictionary instead of the traditional Chinese characters. Personally, I think it is still necessary. If my baby's surname is Cao, I will name the baby according to the 10 drawing. If someone named Cao asks me to name him, I will also choose the name based on the 10 strokes, but I will tell him that he disagrees and it is up to him to decide whether to adopt it or not.