Function request_capability 

pub fn request_capability(s: &str) -> Cmd

RequestCapability is a command that requests the terminal to send its Termcap/Terminfo response for the given capability.

Bubble Tea recognizes the following capabilities and will use them to upgrade the program’s color profile:

• "RGB" Xterm direct color
• "Tc" True color support

Note: that some terminal’s like Apple’s Terminal.app do not support this and will send the wrong response to the terminal breaking the program’s output.

When the Bubble Tea advertises a non-TrueColor profile, you can use this command to query the terminal for its color capabilities.