static JFrame showCenterFrame(S title, int w, int h) {
  ret showCenterFrame(title, w, h, null);
}

static JFrame showCenterFrame(Pt size, S title default defaultFrameTitle(), Component content) {
  ret showCenterFrame(title, size.x, size.y, content);
}

static JFrame showCenterFrame(int w, int h, Component content) {
  ret showCenterFrame(defaultFrameTitle(), w, h, content);
}

static JFrame showCenterFrame(S title, int w, int h, Component content) {
  JFrame frame = makeFrame(title, content);
  setSize(frame, w, h);
  ret centerFrame(frame);
}

static JFrame showCenterFrame(int w, int h, S title, Component content) {
  ret showCenterFrame(title, w, h, content);
}

static JFrame showCenterFrame(S title, Component content) {
  ret centerFrame(makeFrame(title, content));
}


static JFrame showCenterFrame(Component content) {
  ret centerFrame(makeFrame(content));
}