Gradual大全

Quick answer：

The term 'Gradual大全' seems to refer to a comprehensive collection or reference on gradients, which could include information on color gradients, gradient techniques in various fields, or a specific resource related to gradual changes. However, without further context, it is challenging to provide a detailed response. If you could specify the type of gradients or the context in which '大全' is used, I could offer more accurate information.