/lib/udev/rules.d/90-console-setup.rules is in console-setup-linux 1.164.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | ACTION=="add", SUBSYSTEM=="vtconsole", KERNEL=="vtcon*", RUN+="/etc/console-setup/cached_setup_font.sh"
ACTION=="add", SUBSYSTEM=="vc", KERNEL=="vcs[1-9]|vcs[1-9][0-9]", TEST=="/run/console-setup/font-loaded", RUN+="/etc/console-setup/cached_setup_terminal.sh %k"
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