===============================================1===========================================================
    for ( auto text = textures.begin(); text != textures.end(); ++text )
    {
        *text = std::make_unique<sf::Texture>();

        if ( text == textures.begin() )
        {
            (*text)->loadFromFile(PATH_TO_BACKGROUND + "Menu" + EXTENSION);
            continue;
        }

        (*text)->loadFromFile(PATH_TO_BACKGROUND + std::to_string(std::distance(textures.begin(), text)) + EXTENSION);

    }









===============================================2===========================================================
    /*
    for ( size_t i = 0; i < BACKGROUND_COUNT; ++i )
    {
        textures[i] = new sf::Texture();

        if ( i == 0 )
        {
            textures[i]->loadFromFile(PATH_TO_BACKGROUND + "Menu" + EXTENSION);
            continue;
        }

        textures[i]->loadFromFile(PATH_TO_BACKGROUND + std::to_string(i) + EXTENSION);
    }*/