The order in which the styles appear in a style library is important: the styles that are listed below other styles can use them as valid tags. For example, styleA is defined above the styleB so it appears before it in the list. Therefore, you can use the tag styleA in the styleB and it will be correctly recognized, but you cannot use the styleB in the styleA.

Hence, it is not possible to sort the styles by name in a style library, as this would change the inheritance.