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)
}