private Component buildVariableInitializedPanel() {
		initializedTypeCardLayout = new CardLayout();

		inializedTypePanel = new JPanel(initializedTypeCardLayout);
		inializedTypePanel.add(new JPanel(), UNINITIALIZED);
		inializedTypePanel.add(buildInitalValuePanel(), INITIALIZED);
		inializedTypePanel.add(buildFileBytesPanel(), FILE_BYTES);
		return inializedTypePanel;
	}
Define the Main panel for the dialog here.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/memory/AddBlockDialog.java