I was also quite surprised, and I took a bit of challenge to make it a single file that faithfully reproduces the exact behavior and embeds all dependencies including the web font, besides from Inter which is only used for toasts and barely distinguishable from Arial in this context. It weighs 3,123 bytes without the specifically subsetted font which takes additional 10,433 bytes.
https://gist.github.com/lifthrasiir/f46725d3e9e9d055da40b3de...