Method rgbww

src/fl/channels/options.h:61–64

@return The active Rgbww if mWhiteCfg holds one, else RgbwwInvalid::value().

    /// @return The active Rgbww if mWhiteCfg holds one, else RgbwwInvalid::value().
    Rgbww rgbww() const FL_NOEXCEPT {
        if (auto* p = mWhiteCfg.ptr<Rgbww>()) return *p;
        return RgbwwInvalid::value();
    }

    /// True if this channel emits 4-channel RGBW. Requires both the Rgbw
    /// variant alternative AND an active mode — a stored