@Override
	protected void dispose() {
		super.dispose();

		if (dialog != null) {
			dialog.dispose();
		}
	}
This plugin class contains the structure needed for the user to
select blocks of data anywhere inside of the Code Browser and Byte Viewer.
<p>
Note:  This plugin used to refer to selections as blocks instead of lengths
of bytes.  The GUI has been changed, but the internal comments and 
variable names have not.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/select/SelectBlockPlugin.java