Hello folks.

Here is a list of all the codepoint that change

https://gist.githubusercontent.com/cor3ntin/b7f4f52893b0b54890e970f7bbec6118/raw/720a910585d78c9ceb4e0458dcef87af2a436121/width.md

Simply cat that file in the terminal.

The screenshot below is a render on ITerm2

You will notice the tofu for reserved codepoints is considered narrow

but doesn't quite fit so it overlaps with the next cell, same for the number in square.

FYI Iterm2 also uses Unicode UAX 44

https://github.com/gnachman/iTerm2/blob/master/sources/NSCharacterSet+iTerm.m#L464