Method readRGB8

src/fl/stl/fstream.h:182–185

Convenience: read RGB8 pixels (3 bytes per pixel)

    // Convenience: read RGB8 pixels (3 bytes per pixel)
    fl::size_t readRGB8(fl::span<CRGB> dst) {
        read(fl::reinterpret_cast_<char*>(dst.data()), dst.size() * 3);
        return mLastRead / 3;
    }

    // Backward-compat aliases
    bool valid() const { return is_open(); }