Macro fg 

macro_rules! fg {
    ($r:expr, $g:expr, $b:expr $(,)?) => { ... };
}

Creates a true rgb foreground color. R, G and B must be values in range 0..256.

Equivalent to CSI 3 8 ; 2 ; Pr ; Pg ; Pb m.

If the argument is literal, this expands to [&'static str]. Otherwise this expands to String.

Foreground color can be reset with RESET_FG or RESET. Note that RESET will also reset all text modes.

Example

use termal_core::{codes, raw::term_size, Error};

let mut buf = codes::CLEAR.to_string();
let size = term_size()?;
let w = size.char_width;
let h = size.char_height - 1;
let l = (w * h).isqrt();

for y in 0..h {
    for x in 0..w {
        let r = y * 256 / h;
        let g = x * 256 / w;
        let b = 255 - (x * y).isqrt() * 256 / l;

        buf += &codes::fg!(r, g, b);
        buf.push('H');
    }
    buf.push('\n');
}

print!("{buf}");

Ok::<(), Error>(())

Result in terminal