Add support for ANSI OSC

[kontza]

Discord username (optional)

No response

Describe the solution you'd like?

I'd like to have the ability to change terminal background colour via ANSI escape codes.

Is your feature request related to a problem? Please describe.

My SSH config is such, that it runs a local command upon connect. That command is a script that changes the terminal background colour based on the remote server I'm connecting to (reddish background for customer production hosts, green for not-so-critical ones, etc.).

This works fine in iTerm & WezTerm, but when I run the same background changing commands on Warp, nothing happens. Here's an `echo` I've tried.

$ echo -ne "\033]11;#53186f\007"

Background should change into purple.

### Additional context

_No response_

### How important is this feature to you?

5 (Can't work without it!)

### Warp Internal (ignore) - linear-label:770f6576-d6c0-4e4f-a259-fc64b5156087

None

[dannyneira]

Thanks for this feature request!

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[fearlessgeekmedia]

Agreed. I want to see this too, especially since I'm working on bash scripts that rely on the ANSI escape codes.

Warp Terminal is pretty awesome so far, but I have to go to another terminal like Kitty or Konsole to test out bash scripts that use the ANSI escape codes.