private static GTheme loadTheme(File file) {
		try {
			return new ThemeReader(file).readTheme();
		}
		catch (IOException e) {
			Msg.error(Gui.class, "Could not load theme from file: " + file.getAbsolutePath(), e);
		}
		return null;
	}
Sets the map of Java default UI values. These are the UI values defined by the current Java
Look and Feel.
@param map the default theme values defined by the {@link LookAndFeel}
Ghidra/Framework/Gui/src/main/java/generic/theme/ApplicationThemeManager.java