message: Enable SRGB
  This will solve the error "Error creating GL context; Couldn't find any
  pixel format that matches the criterias."
  (I think this maybe a problem of mesa (18.0.0_rc4), but I'm not sure.
  See the thread <https://mastodon.cardina1.red/@lo48576/99670278063669603>
  for my debug log.
diff: @@ -200,6 +200,7 @@ impl Window {
  .with_transparency(true)
  .with_decorations(window_config.decorations());
  let context = ContextBuilder::new()
  + .with_srgb(true)
  .with_vsync(true);
  let window = ::glutin::GlWindow::new(window, context, &event_loop)?;
  window.show();
  