diff --git a/book/source/diag/fingerprint.png b/book/source/diag/fingerprint.png
index 6e33499..003daff 100644
Binary files a/book/source/diag/fingerprint.png and b/book/source/diag/fingerprint.png differ
diff --git a/book/source/diag/fingerprint.svg b/book/source/diag/fingerprint.svg
index f8c7869..6311822 100644
--- a/book/source/diag/fingerprint.svg
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