@Override
@SuppressWarnings("deprecation") // setBackgroundDrawable deprecated by API level 16
public void onLightweightThemeChanged() {
final int background = getResources().getColor(R.color.background_tabs);
final LightweightThemeDrawable drawable = mTheme.getColorDrawable(this, background);
if (drawable == null) return;
drawable.setAlpha(34, 34);
setBackgroundDrawable(drawable);
}