The article discusses how heraldry and Japanese mon can inform the development of visual-identity generators, such as those used to create coats of arms or family crests. The author notes that simply assembling a catalog of symbols and randomly selecting from it is not enough to truly reproduce heraldry, as it is a system governed by rules that dictate how symbols are selected, arranged, and combined. To create a more authentic generator, the author must represent these systems programmatically, taking into account the historical context in which they developed, and considering the differences between European heraldry and Japanese mon, which offer distinct approaches to visual identity generation.