@NonNull
    public TrustedWebActivityIntentBuilder setColorSchemeParams(int colorScheme,
            @NonNull CustomTabColorSchemeParams params) {
        mIntentBuilder.setColorSchemeParams(colorScheme, params);
        return this;
    }
Sets {@link CustomTabColorSchemeParams} for the given color scheme.
This allows, for example, to set two navigation bar colors - for light and dark scheme.
Trusted Web Activity will automatically apply the correct color according to current system
settings. For more details see {@link CustomTabsIntent.Builder#setColorSchemeParams}.
customtabs/src/android/support/customtabs/trusted/TrustedWebActivityIntentBuilder.java