public void CanCompressImageUsingPalette()
{
var rawBytes = File.ReadAllBytes(GetImageFile("10by9pixelsrgb8bpp.png"));
var png = Png.Open(rawBytes);
var builder = PngBuilder.FromPng(png);
var compressed = builder.Save(SaveCompressed);
Assert.True(compressed.Length < rawBytes.Length, $"Compressed size {compressed.Length} bytes was not smaller than raw size {rawBytes.Length}.");
}