/lib/udev/rules.d/95-wedo.rules is in squeak-plugins-scratch 1.4.0.2~svn.r83-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | ATTRS{idVendor}=="0694", ATTRS{idProduct}=="0003", SUBSYSTEMS=="usb", ACTION=="add", MODE="0666", GROUP="plugdev"
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