Terminal Guide
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Sequences
Modes
Attributes
Contributing
(used by other terminals)
ESC
1B
]
5D
1337
31 33 33 37
;StealFocus
3b 53 74 65 61 6c 46 6f 63 75 73
ESC
1B
\
5C
other
other ( )
iterm2: steal focus
https://iterm2.com/documentation-escape-codes.html