ThemeStack themestack = (ThemeStack) stack.getContext().get(Theme.THEME_STACK);
if (null == themestack) {
themestack = new ThemeStack();
stack.getContext().put(Theme.THEME_STACK, themestack);
}
themestack.push(theme);
}
private void popTheme() {
ThemeStack themestack = (ThemeStack) stack.getContext().get(Theme.THEME_STACK);
themestack.pop();