perky 0.1.0

An application to permute and score keyboard layouts.
Documentation 
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pub fn hsv_to_rgb(h: f32, s: f32, v: f32) -> (u8, u8, u8) {
    let c = v * s;
    let h_prime = h / 60.0;
    let x = c * (1.0 - ((h_prime % 2.0) - 1.0).abs());
    let (r1, g1, b1) = match h_prime as u32 {
        0 => (c, x, 0.0),
        1 => (x, c, 0.0),
        2 => (0.0, c, x),
        3 => (0.0, x, c),
        4 => (x, 0.0, c),
        5 | _ => (c, 0.0, x),
    };
    let m = v - c;
    let r = ((r1 + m) * 255.0).round() as u8;
    let g = ((g1 + m) * 255.0).round() as u8;
    let b = ((b1 + m) * 255.0).round() as u8;
    (r, g, b)
}