@nightgrey/ansi
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    Variable OSC_CONTROLConst

    OSC_CONTROL: C1 = ...

    C1: Operating System Command (OSC)

    Followed by a string of printable characters (0x20 through 0x7E) and format effectors (0x08 through 0x0D), terminated by ST (0x9C), intended for use to allow in-band signaling of protocol information, but rarely used for that purpose. Some terminal emulators, including xterm, use OSC sequences for setting the window title and changing the colour palette.