For me, it often happens that I add Anki notes using tools like yomichan or using AnkiDroid, where the diagrams are not generated. Then, on the PC, I can use the regenerate all function to generate the diagrams for those. However, when using a large amount of notes (such as with shared public big kanji decks), this might take a while. So I came up with writing a small extension that searches for notes that dont have a stroke order diagram yet and generates the diagrams only for those. This way, it's faster.
For me, it often happens that I add Anki notes using tools like yomichan or using AnkiDroid, where the diagrams are not generated. Then, on the PC, I can use the regenerate all function to generate the diagrams for those. However, when using a large amount of notes (such as with shared public big kanji decks), this might take a while. So I came up with writing a small extension that searches for notes that dont have a stroke order diagram yet and generates the diagrams only for those. This way, it's faster.