sethsv((uint16_t)(fmod(time_progress * 1.5 + space_progress,1.0)*360), 255, (uint8_t)(progress*255),&px[0]);
led[idx].r = alpha * px[0].r + ( 1.0 - alpha) * shadowed_led[idx].r;
led[idx].g = alpha * px[0].g + ( 1.0 - alpha) * shadowed_led[idx].g;
sethsv((uint16_t)(fmod(time_progress * 1.5 + space_progress,1.0)*360), 255, (uint8_t)(progress*255),&px[0]);
led[idx].r = alpha * px[0].r + ( 1.0 - alpha) * shadowed_led[idx].r;
led[idx].g = alpha * px[0].g + ( 1.0 - alpha) * shadowed_led[idx].g;