Method operator-

src/fl/gfx/crgb.h:367–370

Invert each channel

    /// Invert each channel
    constexpr CRGB operator-() const FL_NOEXCEPT
    {
        return CRGB(255 - r, 255 - g, 255 - b);
    }

#if (defined SmartMatrix_h || defined SmartMatrix3_h)
    /// Convert to an rgb24 object, used with the SmartMatrix library